The Road We Have Taken (2009)

S1E20 Metamorphosis (1)

John Stewart's old companion undergoes an unexpected transformation, gaining the bizarre ability to manipulate his molecular structure. This startling change drives a wedge between him and his girlfriend, complicating their relationship. As he grapples with his newfound powers, he finds himself at odds with the Justice League, leading to a confrontation that tests loyalties and friendships.