At long last, the CW and DC Comics superhero team up, “Legends of Tomorrow,” is just one week away from its highly anticipated premiere. With former “Arrow” character Ray Palmer (Brandon Routh) making his way to the spinoff, a new teaser for the show features the hero getting some advice from The Green Arrow himself.

The CW has been posting individual teasers for each of its superheroes that are coming from either “The Flash” or “Arrow” to combat a new mystical threat. At the 2015 New York Comic Con, the network debuted its first look at “Legends of Tomorrow” featuring The Flash (Grant Gustin) and The Green Arrow (Stephen Amell) giving a pep talk to the new crop of heroes before introducing the time traveling agent Rip Hunter (Arthur Darvill).

The new clip (via ComicBookResource) is focused entirely on Ray Palmer’s “Atom” persona, but ties directly back to his time on “Arrow.” The video hints that the rooftop exchange from the first trailer appears to lead to a brief one-on-one conversation between Atom and the Green Arrow. The hero finds himself with questions from his former crime-fighting ally that he doesn’t really have good answers to.

Ever the careful one, Oliver asks Ray what he knows about Hunter, now that he’s offered him a chance to join his team of Legends in traveling throughout time.

“He’s a time master from the 22nd century,” Palmer deadpans. “It’s a little hard to Google.”

Elsewhere in the teaser, “The Flash” star Danielle Panabaker, who plays Caitlin Snow, makes an appearance asking Atom why most of the billionaires she meets end up being secret superheroes as well. While it’s only 31-seconds long, the new video shows both the second look at Amell in the new show and the first of Panabaker, making it perhaps the best crossover tease to come from the show since New York Comic Con.

Atom and Hunter will be joined by fellow superheroes Firestorm (Victor Garber/Franz Drameh), the White Canary (Caity Lotz), Hawkgirl (Ciara Renee), Hawkman (Falk Hentschel), Captain Cold (Wentworth Miller) and Heat Wave (Dominic Purcell) when the show airs its first episode Jan. 21 on the CW.