HOT OFF THE PRESSES: ABC just sent out spoilery teases for the two-hour series finale of Alias , airing Monday, May 22 (9-11 pm/ET), and the two-hour season finale of Lost, airing Wednesday, May 24 (9-11 pm/ET). Read at your own risk.

Alias: "In the first part of [the] Alias two-hour Finale event, 'Reprisal,' Sloane takes Marshall and Rachel hostage in order to discover a crucial clue to Rambaldi's ultimate endgame, as Sydney, Vaughn and APO race to stop him. In the second part, 'All the Time in the World,' Sydney and Jack must find a way to keep Sloane and Irina from putting their deadly plan into action." Lost: "After discovering something odd just offshore, Jack and Sayid come up with a plan to confront 'The Others' and hopefully get Walt back. Meanwhile, Eko and Locke come to blows as Locke makes a potentially cataclysmic decision regarding the 'button' and the hatch."