Universal Home Entertainment has released a new teaser for “Doc Brown Saves the World,” a new live action short featured as part of the Back to the Future trilogy’s 30th anniversary home media release.

The short sees Christopher Lloyd reprising his role as Emmett “Doc” Brown, the eccentric time travelling scientist from the original trilogy.

Check out the teaser below.

The Back to the Future 30th Anniversary Blu-ray and DVD Trilogies will be release on October 21.