SUMMARY PROSPECTUS
PRIDX TIDDX	Investor Class I Class
March 1, 2018
T. Rowe Price International Discovery Fund
A fund seeking long-term growth of capital through investments in small- and mid-cap growth stocks outside the U.S.
Before you invest, you may want to review the fund’s prospectus, which contains more information about the fund and its risks. You can find the fund’s prospectus and other information about the fund online at troweprice.com/prospectus. You can also get this information at no cost by calling 1-800-638-5660, by sending an e-mail request to info@troweprice.com, or by contacting your financial intermediary. This Summary Prospectus incorporates by reference the fund’s prospectus, dated March 1, 2018, as amended or supplemented, and Statement of Additional Information, dated March 1, 2018, as amended or supplemented. The Securities and Exchange Commission has not approved or disapproved these securities or passed upon the adequacy of this prospectus. Any representation to the contrary is a criminal offense.

Summary 1

Investment Objective

The fund seeks long-term growth of capital through investments primarily in the common stocks of rapidly growing, small- to medium-sized companies outside the U.S.

Fees and Expenses

This table describes the fees and expenses that you may pay if you buy and hold shares of the fund. You may also incur brokerage commissions and other charges when buying or selling shares of the fund, which are not reflected in the table.

Fees and Expenses of the Fund

	Investor Class		I Class
Shareholder fees (fees paid directly from your investment)
Redemption fee (as a percentage of amount redeemed on shares held for 90 days or less)	2.00	%	2.00	%
Maximum account fee	$20	a	—
Annual fund operating expenses (expenses that you pay each year as a percentage of the value of your investment)
Management fees	1.04	%	1.04	%
Distribution and service (12b-1) fees	—		—
Other expenses	0.15		0.03
Total annual fund operating expenses	1.19		1.07

aSubject to certain exceptions, accounts with a balance of less than $10,000 are charged an annual $20 fee.

Example This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods, that your investment has a 5% return each year, and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

	1 year	3 years	5 years	10 years
Investor Class	$121	$378	$654	$1,443
I Class	109	340	590	1,306

Portfolio Turnover The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when the fund’s shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance.

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During the most recent fiscal year, the fund’s portfolio turnover rate was 22.2% of the average value of its portfolio.

Investments, Risks, and Performance

Principal Investment Strategies The fund expects to primarily invest outside the U.S. and to diversify broadly across a variety of industries in developed and emerging market countries throughout the world. The fund will emphasize investing in small- to medium-sized companies. Depending on market conditions, the fund’s portfolio should be composed of investments in at least 10 countries and 100 different companies. Normally, at least 80% of the fund’s net assets will be invested in non-U.S. stocks. For purposes of determining a company’s country classification, the fund uses a country assigned by MSCI Inc. or another unaffiliated data provider.

While the adviser invests with an awareness of the global economic backdrop and the adviser’s outlook for certain industries, sectors, and individual countries, the adviser’s decision-making process focuses on bottom-up stock selection. Country allocation is driven largely by stock selection, though the adviser may limit investments in markets or industries that appear to have poor overall prospects.

Security selection reflects a growth style. The adviser relies on a global team of investment analysts dedicated to in-depth fundamental research in an effort to identify companies capable of achieving and sustaining above-average, long-term earnings growth. The adviser seeks to purchase stocks of companies at reasonable prices in relation to present or anticipated earnings, cash flow, or book value.

In selecting investments, the adviser generally favors companies with one or more of the following characteristics:

·leading or improving market position;

·attractive business niche;

·attractive or improving franchise or industry position;

·seasoned management;

·stable or improving earnings and/or cash flow; and

·sound or improving balance sheet.

The fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Principal Risks As with any mutual fund, there is no guarantee that the fund will achieve its objective. The fund’s share price fluctuates, which means you could lose money by investing in the fund. The principal risks of investing in this fund are summarized as follows:

Active management risks The investment adviser’s judgments about the attractiveness, value, or potential appreciation of the fund’s investments may prove to be incorrect. The fund could underperform in comparison to other funds with a

Summary 3

similar benchmark or similar objectives and investment strategies if the fund’s overall investment selections or strategies fail to produce the intended results.

Risks of stock investing Stocks generally fluctuate in value more than bonds and may decline significantly over short time periods. There is a chance that stock prices overall will decline because stock markets tend to move in cycles, with periods of rising and falling prices. The value of a stock in which the fund invests may decline due to general weakness in the stock market or because of factors that affect a particular company or industry.

International investing risks Investing in the securities of non-U.S. issuers involves special risks not typically associated with investing in U.S. issuers. International securities tend to be more volatile and less liquid than investments in U.S. securities and may lose value because of adverse local, political, social, or economic developments overseas, or due to changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, international investments are subject to settlement practices and regulatory and financial reporting standards that differ from those of the U.S.

Emerging markets risks The risks of international investing are heightened for securities of issuers in emerging market countries. Emerging market countries tend to have economic structures that are less diverse and mature, and political systems that are less stable, than those of developed countries. In addition to all of the risks of investing in international developed markets, emerging markets are more susceptible to governmental interference, local taxes being imposed on international investments, restrictions on gaining access to sales proceeds, and less liquid and less efficient trading markets.

Small- and mid-cap stock risks Because the fund invests primarily in small- and medium-sized companies, its share price could be more volatile than a fund that is exposed to only large companies. Small and medium-sized companies often have less experienced management, narrower product lines, more limited financial resources, and less publicly available information than larger companies. Smaller companies may have limited trading markets and tend to be more sensitive to changes in overall economic conditions.

Investment style risks Different investment styles tend to shift in and out of favor depending on market conditions and investor sentiment. The fund’s growth approach to investing could cause it to underperform other stock funds that employ a different investment style. Growth stocks tend to be more volatile than certain other types of stocks, and their prices may fluctuate more dramatically than the overall stock market. A stock with growth characteristics can have sharp price declines due to decreases in current or expected earnings and may lack dividends that can help cushion its share price in a declining market.

Performance The following performance information provides some indication of the risks of investing in the fund. The fund’s performance information represents

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only past performance (before and after taxes) and is not necessarily an indication of future results.

The following bar chart illustrates how much returns can differ from year to year by showing calendar year returns and the best and worst calendar quarter returns during those years for the fund’s Investor Class. Returns for other share classes vary since they have different expenses.

The following table shows the average annual total returns for each class of the fund that has been in operation for at least one full calendar year, and also compares the returns with the returns of a relevant broad-based market index, as well as with the returns of one or more comparative indexes that have investment characteristics similar to those of the fund.

In addition, the table shows hypothetical after-tax returns to demonstrate how taxes paid by a shareholder may influence returns. After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as a 401(k) account or an IRA. After-tax returns are shown only for the Investor Class and will differ for other share classes.

Summary 5

Average Annual Total Returns
			Periods ended
			December 31, 2017
												Since				Inception
			1 Year			5 Years			10 Years			inception				date
	Investor Class																12/30/1988
		Returns before taxes	39.01	%		13.81	%			6.86	%		—		%
		Returns after taxes on distributions	37.75			12.66				6.21			—
		Returns after taxes on distributions
		and sale of fund shares	22.85			10.80				5.40			—
	I Class															12/17/2015
		Returns before taxes	39.16			—				—			19.04
	S&P Global ex-U.S. Small Cap Index (reflects no deduction for fees, expenses, or taxes)
			32.71		10.84			4.87				18.48		a
	MSCI EAFE Small Cap Index (reflects no deduction for fees, expenses, or taxes)
			33.50		13.23			6.14				17.69		a
	Lipper International Small/Mid-Cap Growth Funds Average
			34.37		11.05			4.94				15.04		b

aReturn as of 12/17/15.

bReturn as of 12/31/15.

Updated performance information is available through troweprice.com.

Management

Investment Adviser T. Rowe Price Associates, Inc. (T. Rowe Price)

Investment Sub-advisers T. Rowe Price International Ltd *(T. Rowe Price International) and T. Rowe Price Hong Kong Limited (Price Hong Kong)

* Effective April 1, 2018, T. Rowe Price Japan, Inc. will replace T. Rowe Price International Ltd. as investment sub-adviser to the fund.

Portfolio Manager	Title	Managed Fund Since	Joined Investment Adviser
Justin Thomson	Chairman of Investment Advisory Committee	1998	1998

Purchase and Sale of Fund Shares

Effective at the close of the New York Stock Exchange on Monday, April 2, 2018, the fund will be closed to new investors and new accounts, subject to certain exceptions. Investors who already hold shares of the fund at the close of business on Monday, April 2, 2018, will be permitted to continue to purchase additional shares.

The Investor Class generally requires a $2,500 minimum initial investment ($1,000 minimum initial investment if opening an IRA, a custodial account for a minor, or a

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small business retirement plan account). Additional purchases generally require a $100 minimum. These investment minimums may be waived or modified for financial intermediaries and certain employer-sponsored retirement plans submitting orders on behalf of their customers.

The I Class generally requires a $1,000,000 minimum initial investment and there is no minimum for additional purchases, although the initial investment minimum may be waived for intermediaries and retirement plans maintaining omnibus accounts, and certain institutional client accounts for which T. Rowe Price or its affiliate has discretionary investment authority.

For investors holding shares of the fund directly with T. Rowe Price, you may purchase, redeem, or exchange fund shares by mail; by telephone (1-800-225-5132 for IRAs and nonretirement accounts; 1-800-492-7670 for small business retirement plans; and 1-800-638-8790 for institutional investors and financial intermediaries); or, for certain accounts, by accessing your account online through troweprice.com.

If you hold shares through a financial intermediary or retirement plan, you must purchase, redeem, and exchange shares of the fund through your intermediary or retirement plan. You should check with your intermediary or retirement plan to determine the investment minimums that apply to your account.

Tax Information

Any dividends or capital gains are declared and paid annually, usually in December. Redemptions or exchanges of fund shares and distributions by the fund, whether or not you reinvest these amounts in additional fund shares, may be taxed as ordinary income or capital gains unless you invest through a tax-deferred account (in which case you will be taxed upon withdrawal from such account).

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase shares of the fund through a broker-dealer or other financial intermediary (such as a bank), the fund and its related companies may pay the intermediary for the sale of fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information. However, the fund and its investment adviser do not pay broker-dealers and other financial intermediaries for sales or related services of the I Class shares.

T. Rowe Price Associates, Inc.
100 East Pratt Street
Baltimore, MD 21202 F38-045 3/1/18