The terms and conditions have been set for the second, sure-to-be-epic Dubsmash War between the casts of Agents of S.H.I.E.L.D. and Agent Carter.

Agent Carter‘s Hayley Atwell and James D’Arcy, and Agents of S.H.I.E.L.D.‘s Clark Gregg and Chloe Bennet introduce the event in a pretty hilarious video… in which Bennet is a little bit too excited about one element of the game.

The actors recap the first Dubsmash War, which began innocently enough at this summer’s San Diego Comic-Con – but rapidly “took on a life of its own,” Atwell says.

“You might even say things got a little out-of-hand,” Bennet and Gregg agree.

The actors remain divided on which party emerged from the initial engagement as the champion, and have decided to kick off Dubsmash War II – “to the death!” Bennet yells, to the disconcertment of her fellow actors.

The second Dubsmash War will consist of three rounds, kicking off on Sept. 2. Fans will vote on the winner of each installment by donating money to either Stomp out Bullying and St. Jude’s Children’s Research Hospital – every dollar will count as one vote. One lucky donor will also be flown to Los Angeles for lunch with Atwell, D’Arcy, Bennet, and Gregg, and will also get to film a dubsmash video with the crew.

In addition, the team defeated in Dubsmash War II will donate $2000 to the winner’s charity – and will perform a dubsmash video choreographed by the winners.

Given the epic escalation of the first Dubsmash War, it seems certain that fans of Agents of S.H.I.E.L.D. and Agent Carter are in for treat as the “deathmatch” kicks off. With Marvel’s resources at their disposal, there’s really no telling what heights (or, come to think of it, lows) Gregg, Bennet, Atwell, and D’Arcy might achieve – but we can’t wait to find out.

Will you vote for ‘Agents of S.H.I.E.L.D.’ or ‘Agent Carter’ in Dubsmash War II?