S.N.A.F.U.

S5, E22: While Russ, Bobby, Monica and Jamie are out tracking pot growers in the Santa Monica mountains, Chris Kelly returns to visit a wounded T.C. Callaway, who's fighting addiction to pain pills, as well as kidnap victim Cory McNamara. All hell breaks loose when Chris finds out T.C. slept with her best friend, Cory, and that Cory doesn't know if her pregnancy is the result of Will Blake or T.C. Callaway. The season-ending cliffhanger occurs when Cory opens the blood test results to find out which one is the father.