Marvel's Ultimate Spider-Man (2012)

S03E17 Ant-Man

Title: Ant-Man Plot: Nick Fury finds himself compromised after being invaded by nanite replicas of Doctor Octopus’ Octo-Bots. As the rest of the team battles against Doctor Octopus, Spider-Man and Power Man enlist the help of Ant-Man to shrink down and venture inside Nick Fury’s body, aiming to eliminate the invasive Octo-Bots before they cause further harm.