ALEX RETURNS TO HER CHILDHOOD HOME TO KILL SEMAK – Alex’s mission to take down Gogol comes to a head as she infiltrates her childhood home and faces ghosts from her past. On a completely separate mission, Nikita also ends up at the mansion to steal Semak’s (guest star Peter J. Lucas) black box. Nikita and Alex run into each other and decide to join forces, but they run into a major roadblock. Meanwhile, Michael and Owen (guest star Devon Sawa) work together to figure out Percy’s secret plan with the Guardians. Aaron Stanford and Melinda Clarke also star. Deran Sarafian directed the episode written by Kristen Reidel.