NEW YORK (TheStreet) -- Dollar General (DG - Get Report)  reported third-quarter earnings results Thursday that came up short of analysts' expectations, but TheStreet's Jim Cramer says this is one of the great growth stories.

Cramer notes Dollar General said things were improving going out of the quarter.

He calls this a domestic play and notes the company's commitment to acquiring rival Family Dollar  (FDO) .

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Cramer says investors periodically get an opportunity like this when companies say something that previously wasn't so good but provide a good outlook for the future. In this case, Dollar General announced plans to open 730 new stores and remodel 875 stores next year. "Guidance is everything," Cramer says.

Therefore, Cramer suggests investors buy Dollar General here.

DG Chart DG data by YCharts

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