ONCE UPON A TIME
ABC, 8:00 p.m. ET
MIDSEASON RETURN: Once Upon a Time is back with new episodes, but this time the show’s gone to hell. Or, at least, to some version of the Underworld, where a band of characters from Storybrooke descend in hopes of rescuing Hook. Watch for Greg Germann of Ally McBeal fame as Hades – and watch for several long-dispatched characters from the series to make return appearances, because Hades happens to be their current place of residence.