The fifth-year residents return for the first day of a year that will make or break their careers Meredith faces the consequences of tampering with Derek's clinical trial and is terminated at the hospital; April tries to step up to the plate as Chief Resident in the wake of a giant sinkhole in the middle of Seattle; and Cristina and Owen are still at odds over their drastically different feelings for their unborn child.
Two naked survivalists are challenged to survive for 21 days in the Costa Rican rainforest, despite a deadly snake bite on a producer. Kim is paired with Shane. They encounter challenges including rain, illness, shelter fire, and a snake attack.