Samuel learns just how powerful he can become and takes dangerous measures to reach his full potential. Meanwhile, as Tracy begins to lose control of her ability, one of her own comes in harms way.

Cast: Jack Coleman, Greg Grunberg, Robert Knepper, Ali Larter, Masi Oka, Hayden Panettiere, Adrian Pasdar, Zachary Quinto, Sendhil Ramamurthy, Milo Ventimiglia, Jimmy Jean-Louis, Andrew Connolly, Ravi Kapoor, Kavi Ladnier, Dawn-Lyen Gardner