Check out the promo for the episode, wherein the team hits up the Old West, and naturally encounters Jonah Hex, in his smashing debut on the series -- below:
When the team needs a place to hide out, Rip (Arthur Darvill) sets a course for the Old West. Upon arrival, they start a fight with a gang of outlaws, putting the small town in jeopardy. Luckily, an old friend of Rip's, Jonah Hex (guest star Johnathon Schaech), steps in to save them. Thor Freudenthal directed the episode with story by Greg Berlanti & Marc Guggenheim and teleplay by Marc Guggenheim (#111)
"Legends of Tomorrow" airs Thursdays at 8/7c on The CW.