Liz breaks through a window to save Jake from their burning house—but he's not breathing. She rushes him to the ER, and runs right into the bomber who's holding the hospital hostage! Jason hears about Jake and the fire, and he rushes to GH, too. When Jason arrives, he notices that Joe's hand has been on the detonator—and if he takes it off for any reason, the bomb will go off. Just then, an unsuspecting Lucky sneaks in and lines up the shot that will take Joe out! Elsewhere, Sonny promises to give Kate a night she'll never forget... and proposes marriage! And Robin is shocked when Kelly tells her she's pregnant!