This is the definition of pure.

Chris Evans has taken another major stride in his quest to be the purest Chris of them all. IMAX just revealed the first trailer for their documentary Superpower Dogs and wouldn't you know it, Mr. Captain America himself, the Internet's most wholesome boyfriend, is doing the narration. Thanks Cap, we truly do not deserve this. The doc comes from the filmmakers behind Jerusalem and Journey to Mecca, and offers an "immersive IMAX adventure toe experience the life-saving superpowers and extraordinary bravery of some of the world's most amazing dogs." Dawwwww. These aren't just good dogs, …