The two speedsters, previously bitter enemies of one another, Wallace West and Thaddeus Thawne, have finally learned to put their past actions behind them. Now, no longer trying to kill each other, they've managed to develop a close, mutual friendship. Although neither of them care to admit it, they both would hate to have anything bad happen to the other. But, of course, nothing good can last very long, now can it? Just when everything seems to be going rather well for the two, Wally manages to get himself lodged into a mouthful of trouble, not giving Thad much of an option when he has to rush in and save the idiot's sorry ass. The only thing is, the spastic redhead seems...different. A bad different. A murderous different. Thad must work quickly to resolve the issue at hand before Wally puts a permanent end to his own problem: Thaddeus Thawne.