Metamorphosis, Pt. 1

S1 E22: While on duty, Green Lantern reunites with Rex Mason, an old ex-Marine buddy who is now a successful executive at a large chemical company. But after Rex is exposed to a powerful mutagen that transforms him into a freakish abomination called Metamorpho, he blames his old friend Green Lantern and vows to destroy him. Part 1 of 2.