Season 2 kicks off with Martin Odum hiding out in present-day London and searching for clues about his identity with help from a CIA agent (Kelly Overton). Elsewhere, an investigation is launched into a Russian gangster.

Martin makes contact with a woman who may be linked to his past. Meanwhile, Dmitry embarks on a mission in 2001 Prague to find a wanted war criminal, yet concerns rise that Dmitry may be going too far with his infiltration techniques.

Martin races against time in a search for Kate in Paris. Meanwhile, Dmitry discovers a key to getting close to Doku Zakayev in 2001 Prague, and Ballard gets swept up in a life-changing incident in 1991 Lithuania.

Kate becomes a fugitive in modern-day Paris, so Martin puts her into hiding. Meanwhile, Ballard unearths information that could lead him to Martin, and Ilyana asks Dmitry for a dangerous favor in 2001 Prague.

Martin prepares Kate for a perilous mission in present-day Paris. Meanwhile, Gabi confronts intelligence agents in Prague; a vulnerability in Dmitry is discovered; and Alex is recruited for a distinguished position.