"The Vagabond King"
Returning home from what appeared to be failed mission to get Starro to his home planet, the Justice League Europe learns that Starro used them and is taking over London. Starro is able to enslave most of the JLE, with the exception of Captain Atom, Metamorpho, and Rocket Red. The three escape and fly to New York to get the aide of the JLA.There Martian Manhunter agrees to go back to London and find the head Starro. The four track the head Starro to a sewer and Martian Manhunter tries to fight it, but he kills the host back mistake and the head Starro takes over J'onn's body as his own.