CBS | 9:00 pm

Bravo unit takes a devastating hit that will probably change the team forever in the Season 4 finale, "One Life to Live." Even as they are collectively sent reeling by this unexpected blow, every member of the group knows he or she is going to be forced to make some big, and probably painful, personal decisions. David Boreanaz, Max Thieriot, Neil Brown Jr., A.J. Buckley, Toni Trucks and Tyler Grey star.