Clearly following on from his issues at the end of Flash of Two Worlds, its a heated close to this episode for Martin Stein. Whilst hes usually shown as the brains of Firestorm, here we get to see him actually flame on (wrong hero, I know but you get the point). Many were expecting Stein to maybe collapse again, but it was a massive shock to see him with blue flames coming from his being. Ronnie Raymond, the other half of Firestorm, was last seen sacrificing himself to save the planet, so clearly that has affected Dr. Stein as well. Just how much its affected him remains to be seen, although expect another component of Firestorm to rear his head down the line.