 In "An Invisible Thread", Mohinder is rescued from Building 26 along with the rest of the evolved humans by Hiro and Ando and at their insistence examines Hiro to determine why his powers are causing him headaches and nosebleeds.Mohinder determines that Hiro's body is rejecting his powers and he can't risk stopping time anymore.After Hiro does to save Noah and passes out, Mohinder takes care of him and plans to take him to the hospital.