Source: MSN TV [follow link for complete column]
MSN TV: Tonight's Picks April 15, 2011
9:00 PM, CW
Rewriting history has huge consequences in this new episode, and by huge, we mean Titanic. When Balthazar (Sebastian Roche) tampers with the past by preventing that fabled disaster at sea, an angry Fate (Katie Walder) retaliates by killing those who would have died when it sank. Castiel (Misha Collins) tells Sam and Dean (Jared Padalecki, Jensen Ackles) that they're next if they don't kill her first in the new episode "My Heart Will Go On."