With the arrival of Legion season 2 just around the corner, FX has released a brand new first look at the first episode. The mind-bending Marvel Comics-based series stars Dan Stevens as David Haller, a powerful mutant who was diagnosed as schizophrenic and institutionalized, but who then broke out and found acceptance with a group of his fellow mutants. Oh, and he also had a monster living inside his head.

Created by Noah Hawley (Fargo), Legion is a proudly weird show, so it only makes sense that season 1 ended with David getting sucked into a mysterious floating orb that then flew away. But who sent the orb, and why, and where exactly did it take him?

Related: Legion Season 2 Prepares For The End Of Everything In First Full Trailer

The first look video confirms that David will return in the first episode, but while he thinks it's only been a day since he was captured, a year has passed for all his friends - including his girlfriend, Syd Barrett (Rachel Keller). The others aren't sure if David is telling the truth about where he's been (his story is a little odd), and David himself is, as always, struggling to figure out what's real and what's not. Meanwhile, Oliver (Jemaine Clement) and Farouk a.k.a. the Shadow King (Aubrey Plaza/Navid Negahban) are still out there somewhere, and it probably won't be easy to bring Oliver back.

The last trailer for Legion season 2 revealed that the Summerland group are now working for Division III, having joined forces with them in an effort to find and defeat the Shadow King. David's old enemy has found a way to "infect" people, which could have catastrophic consequences given how powerful Farouk has proven to be. In this new promo , Hawley explains that season 2 will expand the first season's themes and look at shared delusions and madness:

"The first year was very much about mental illness and that idea of what's normal and what's not normal... I wanted to continue to explore those ideas about mental illness: what is a delusion, how does a delusion take hold, how does it thrive. What does it take for a group of people to go mad?"

There are a lot of comic book shows on TV at the moment, but most feature the traditional blend of capes and tights with a strong emphasis on superpowers. Legion, on the other hand, seems less concerned with forming a super-team of mutants and having them fight crime, and more concerned with exploring the impact of special abilities on a person's psyche. The first season was a wonderfully weird journey, so if season 2 is even half as good then we're in for a real treat.

More: Legion Season 2 Will Maintain Mystery With Time Jump

Legion season 2 premieres Tuesday, April 3rd at 10pm on FX.