More refugees pour into the Mutant Underground, but the group faces a threat when they discover one of them is a spy working for Sentinel Services. Meanwhile, Reed visits his estranged father and learns that secrets from his family's past could prove... (more) useful.

Caitlin Mehner, Elena Satine, Garret Dillahunt, Hayley Lovitt, Ilan Muallem, James Dougherty, Jermaine Rivers, Liza Fagin, Marco Schittone, Michelle Kim, Paul Cooper, Raymond J. Barry, Renes Antonio Rivera, Skyler Samuels, Stephen Alderfer, Zach Roerig