Two fight as one. While under convergence, Dr. Martin Stein and youngin Jefferson Jackson become the hero known as Firestorm. The original Firestorm team of Ronnie and Martin came to an end at the start of the season after Ronnie sacrificed himself to save the city and close the Singularity.

DC’s Legends of Tomorrow premieres Thursday, January 21 at 8/7c on The CW.