Alias

In this two-part special, featuring the episodes "S.O.S." and "Maternal Instinct," Jack calls on former Agent Weiss (Greg Grunberg) and the APO team to search for Sydney after receiving a distress call from her. But Jack believes that a larger conspiracy may be in play, thwarting their attempts to rescue her. Meanwhile, Tom's suspicious actions may suggest he has a hidden agenda. Irina Derevko (Lena Olin) is a surprise partner to Jack and a very pregnant Sydney on a mission to retrieve "The Horizon" - but her allegiances still remain in question. Sloane is forced to scramble when Devlin suspects a mole is working inside APO.