Dominic Purcell as Mick
Mick (Dominic Purcell) spots Julius Caesar (Simon Merrells) in Aruba in Season 3, episode 1 of “Legends of Tomorrow.” The CW/Robert Falconer

The Legends will be facing off against Julius Caesar and his army of gladiators in the Season 3 premiere of “Legends of Tomorrow.”

According to the synopsis for Season 3, episode 1 of the CW series, the Legends — who have been relieved of duty since breaking the timeline at the end of last season — must reunite after Mick (Dominic Purcell) spots Julius Caesar (Simon Merrells) in Aruba. But in order to stop Julius Caesar from conquering the modern world, Sara (Caity Lotz), Nate (Nick Zano) and Ray (Brandon Routh) must first come up with a plan to steal the Waverider back from Rip (Arthur Darvill) and his new crew called the Time Bureau.

In the trailer for Season 3, Mick is sunbathing on the beach when he’s approached by a gladiator on a horse.

“I’m Julius Caesar of Rome,” says the man in full battle gear.

“I’ve been in one of your casinos in Vegas,” Mick casually replies.

While Mick doesn’t immediately realize that Caesar is an anachronism, executive producer Phil Klemmer told DC Legends TV last month that Mick is actually the first Legend to find out that their rival group of time masters, the Time Bureau, isn’t really that effective in their job.

“The first six months are great,” Klemmer said when asked about Mick’s vacation in Aruba. “[But] six months, one day into it? Things take a turn. He’s the first Legend who realizes that the Time Bureau, for all their professionalism and competency, that there is one anachronism that they have missed, and for Mick, it’s just like ‘Aw, seriously? Do I have to? I could spend another six months on this beach, just getting tanned and drunk.’”

For the rest of the team, however, that unfixed anachronism is sort of their “golden ticket” to prove themselves once again. “That’s really the dynamic for Season 3: Our team justifying their existence, proving to their foils the Time Bureau that they’re still needed and necessary, that their unorthodox ways of doing things still serves a purpose,” Klemmer said.

“Legends of Tomorrow” Season 3 premieres on Tuesday, Oct. 10 at 9 p.m. EDT on The CW.