When Mr. Gold's house is robbed, Emma suspects he is planning to have vigilante justice; Ruby, Mary Margaret and Ashley (Jessy Schram) plan a night out on Valentine's Day; Belle (Emilie de Ravin) makes a deal with Rumplestiltskin.
A mysterious source, who wants Jonathan to drop out of the race, threatens his life; Clark finds his father beaten and determines to find the attacker.
As time dramatically ticks down toward the end of this acclaimed series, Peter, Olivia and Walter stop at nothing to save the universe from Observer rule. Walter enters the infamous deprivation tank in an attempt to uncover a key piece of information about the mysterious figure, Donald. Meanwhile, Captain Windmark sets out on a revealing mission of his own as long-standing questions are answered.
Gus has a girlfriend; Shawn gets jealous when Juliet goes under cover on an Internet dating site.
The gang crosses paths with a crime boss while attending a wedding at a casino resort.