“Andy Goes In” tells the behind-the-scenes story of the widely publicized 2015 undercover investigation by Mercy for Animals of a factory farm that supplies McDonald’s. The investigation led to convictions for animal abuse and public apologies from both Tyson and McDonald’s. Using hidden camera footage, the film shows us how “Andy” used cunning and charm to infiltrate Tyson’s #1 supplier. We are used to seeing short videos of animal abuse; what we don’t see is the dangerous work it takes to get that footage to the public. Andy gains the trust of his employers — then betrays them to protect the animals he loves.