The Atom is teaming up with everybody in April. The day after an episode of The Flash that sees him battling alongside the Scarlet Speedster, the April 15 episode of Arrow sees The Atom and The Arrow taking on Deathbolt, played by Doug Jones.

This is also the episode where it's been teased someone will die...although if that's true, the synopsis gives no indication as to who it might be.

You can check out the official synopsis below.

“Broken Arrow” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)

DOUG JONES GUEST STARS AS DC COMICS’ VILLAIN DEATHBOLT — Lance (Paul Blackthorne) continues his mission to take down the Arrow (Stephen Amell) so Felicity (Emily Bett Rickards) orders Oliver to keep a low profile. However, when a meta-human named Jake Simmons (guest star Doug Jones), who kills people with blasts of energy and plasma, starts terrorizing Starling City, Oliver is forced to ask Ray (Brandon Routh) for help. The unlikely duo is forced to team up to save the city. Doug Aarniokoski directed the episode with story by Jake Coburn and teleplay by Ben Sokolowski & Brian Ford Sullivan (#319). Original airdate 4/15/2015.