John Cena’s Peacemaker was an odd but entertaining part of 2021’s The Suicide Squad. Apparently writer/director James Gunn thought so too, creating a spinoff series for the character, despite his apparent death near the end of the movie. Now back and with a team of misfits on a special mission we’re learning very little about, Peacemaker is out of his depth and flailing around in “Best Friends for Never,” his show’s second episode.