At the end of Season 2 of DC's Legends of Tomorrow, Rip Hunter (Arthur Darvill) left the team. The character has a very rough year having cleared his own memories and gotten lost in the 1970s, only to be found by the Legion of Doom and mentally reprogrammed to work with them before Sara (Caity Lotz) and Jax (Franz Drameh) could save him and put his brain back right.
In the time he was away, Sara had become the captain of the ship and leader of the Legends, while Jax became the ship's mechanic. And though Rip was the one that pulled them together, he no longer felt he had a place on the team. Hence, he took the jump ship and left.
In the new season, we know that Rip has started up a new group to replace the Time Masters. He calls them the Time Bureau and they're far more efficient at the job then the Legends. And since the Legends have broken time and are trying to fix it, this will put them at odds with the Time Bureau — but that doesn't mean the days of Rip working with the Legends are over. There is an underlying mystery to the season that will lead to the two groups having to work together.
Darvill told EW.com:
"There's a thing that he discovers, which is very important to him and he feels like, at times, he can sort out on his own, and then also realizes he needs to call on the Legends in order to help him. The Time Bureau, as much as they're brilliant, they do things in too much of an official way in order for, in his opinion, things to actually get done. So his interaction with the Legends, at the moment, is very much as a means to an end for him in terms of what he's trying to achieve."
So, the thing he dislikes about the Legends will be what he needs the most: their chaos factor.
DC's Legends of Tomorrow returns October 10th at 9 p.m. ET on the CW.