Grey's Anatomy: Freedom - Sept 18 2008 Preview

Grey's Anatomy: Freedom - REPEAT - In the fourth-season finale, the surgeons work as a team to free a boy from a hardening block of cement. Meanwhile, Meredith and Derek have one last chance at a positive outcome in their clinical trial, Izzie helps Alex care for an ailing Rebecca, and Lexie finds out crucial info about George's intern status. Thursday 9:00 et/8:00 ct on ABC.

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