Lanterns Episode 2 Ends with Sinestro’s Warning About John Stewart

In episode 2 of HBO’s Lanterns, Hal Jordan visits the traitorous former Green Lantern Sinestro to learn about the Manhunters, shapeshifting synthetic beings that can wipe out entire species. Instead of answers, Sinestro warns Hal that his new trainee, John Stewart, is the greatest threat he faces. The episode ends on that cliffhanger, casting suspicion on Stewart.