https://www.cnet.com/news/all-avengers-endgame-trailers-posters-so-far/

In this Avengers: Endgame TV spot, Natasha Romanoff/Black Widow (Scarlett Johansson) says, "We've found something." Fingers crossed that "something" helps in their pending last battle with Thanos. The trailer also shows War Machine and Rocket running and falling to the ground. Uh-oh.

This Avengers: Endgame TV trailer isn't the first trailer footage not entirely focused on Thanos and his deadly snap, but it does include a few much-needed laughs from the heroes.