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.