ALIAS

10:30pm (M)

In tonight’s episode of ALIAS, Irina Derevko 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.

Meanwhile, Sloane is forced to scramble when Devlin suspects a mole is working inside APO.

And Tom’s suspicious actions may suggest he has a hidden agenda.

ALIAS stars JENNIFER GARNER as Sydney Bristow, VICTOR GARBER as Jack Bristow, RON RIFKIN as Arvin Sloane, MICHAEL VARTAN as Michael Vaughn, CARL LUMBLY as Marcus Dixon, KEVIN WEISMAN as Marshall Flinkman, BALTHAZAR GETTY as Thomas Grace, RACHEL NICHOLS as Rachel Gibson and ELODIE BOUCHEZ as Renee Rienne, with LENA OLIN as Irina Derevko.