India, Sept. 30 -- Slow Horses Season 6 Episode 3, titled Resurrection, brings a familiar face back into Jackson Lamb's increasingly dangerous world. Sid Baker is alive. After being presumed dead for years, Sid's return was revealed at the end of Episode 2. Episode 3 finally begins to explain what happened to her and why she has suddenly been pulled back into the Slough House crisis. But Sid is not the only former Slow Horse to return.

Moira Tregorian also survives an apparent attempt on her life, while Louisa Guy is pulled back into the action. With former and current members of Slough House being targeted, Lamb's scattered network has little choice but to regroup.

At the same time, Sid discovers a potentially crucial connection to Kaz...