Director Joss Whedon is used to saving the world with the help of superheroes and vampire slayers. But he's pulling out the big guns for the biggest challenge yet: getting people to vote this election, and not for Donald Trump. 

Wednesday, Whedon unveiled the first video from his super PAC, Save the Day, featuring a star-studded celebrity ensemble, including Robert Downey Jr., Scarlett Johansson, Mark Ruffalo, Keegan-Michael Key, Julianne Moore, Jesse Williams and Neil Patrick-Harris. The video, simply titled "Important," has a simple, but resonant message: Every vote counts, so be sure to do so in November. Otherwise, as these celebs strongly hint, we could be looking at a Trump presidency.

Or, as Don Cheadle describes him: 

Don CheadleSource: Giphy
Don Cheadle  Giphy

Trump — and Hillary Clinton, for that matter — aren't explicitly mentioned by name, but when Hamilton's Leslie Odom Jr. talks about the danger of giving "nuclear weapons to a man whose signature move is firing things," the inclination is clear. 

The video ends with a light-hearted tone, however, imploring people to vote this election — and if they do, Mark Ruffalo will do a nude scene in his next movie. Everyone in the video is on board, except maybe Ruffalo. 

Mark RuffaloSource: Giphy
Mark Ruffalo  Giphy

Watch the first Save the Day spot below.

Source: YouTube