The Inner Circle prepares for a secret ambush, but Polaris is reluctant to join and Reeva tasks Esme with getting Polaris on board. Esme confides in Polaris, revealing her and her sisters' troublesome past. Meanwhile, Thunderbird trains Reed on controlling his powers and The Purifiers attack The Mutant Underground as they attempt to rescue a group of homeless mutants.
Elenco: Stephen Moyer , Amy Acker , Natalie Alyn Lind , Percy Hynes White , Sean Teale , Jamie Chung , Emma Dumont , Blair Redford , Coby Bell .