Produced by Fargo’s Noah Hawley, Legion follows David Haller (a character with a serious Marvel pedigree, played here by Dan Stevens) as he learns the true nature of the afflictions that have kept him institutionalized for most of his life. With the help of the similarly troubled Syd (Rachel Keller) and the unorthodox therapist Melaine Bird (Jean Smart), he gains a greater understanding of the voices and visions in his head. Those characters (and others played by the likes of Aubrey Plaza and Katie Aselton) can be seen in action in the newly released trailer above—and, presumably, that series premiere that now has a broadcast date.