When Gossip Girl Season 5 returns tonight with all-new episodes, starting with Episode 18: “Con-Heir”, Chuck Bass (Ed Westwick) is going to be dealing with a lot. Outside of the fact that the love of his life, Blair (Leighton Meester), has chosen another fella, Chuck was given some pretty heavy intel when last we spotted him on the UES: Lily told him that his oft-nefarious Uncle Jack (Desmond Harrington) gave a life-saving blood transfusion after he and Blair’s accident!

What do you do with that information when you’re Chuck Bass? You bring Uncle back to town to make amends, of course! (You didn’t think all that character evolution this season was for nothin’, did ya?)

But according to Executive Producer Joshua Safran, Chuck soon “discovers maybe not all is what it seems,” which then “starts [him] on a hunt to figure out his path and what exactly happened.” Josh tells The Hollywood Reporter, adding, “It’s a really big story for Chuck.”

And (mega p.s.!), it’s probably gonna include Blair. (Which explains all those squee-worthy pics of the former lovers on-set, we imagine!) Cue: Ultimate tease time!

Josh says, “As he gets deeper and as it gets more and more layered and emotional, Chuck may reach out for support from the only person who can support him – or has supported him in the past – which would be Blair. Whether or not she helps him, you’ll have to wait and see.”