Tom Cruise injured his leg during a stunt gone wrong while filming "Mission Impossible 6" in London on Aug. 13.

The actor was filming a scene in which he was supposed to jump onto the roof of a building in London. The actor can be seen running and leaping from a rigging, but falling just short and hitting the side of a building hard.

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After slamming into the building, Tom pulled himself up and video shows him limping quite pronouncedly. While members of the crew looked on, Tom could be seen trying to essentially walk it off before collapsing to his knees.

After collecting himself, he limped back to the edge of the building and and was pulled away by crew members on the safety team.

He was wearing a safety harness.

The extent of the injuries are unknown.

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From Tom to do his own stunts is nothing new. During the previous "Mission Impossible" film, Tom hung on the outside of an airplane while it was airborne. While little is known about the plot of the new "MI" film, Skydance Media CEO David Ellison told Collider that Tom will be performing the biggest stunt sequence of his career in the film.

"What Tom is doing in this movie I believe will top anything that's come before. It is absolutely unbelievable—he's been training for a year," David said. "It is going to be, I believe, the most impressive and unbelievable thing that Tom Cruise has done in a movie, and he has been working on it since right after Rogue Nation came out [in 2015]. It's gonna be mind-blowing."