70-year-old widower Ben Whittaker has discovered that retirement isn't all it's cracked up to be. Seizing an opportunity to get back in the game, he becomes a senior intern at an online fashion site, founded and run by Jules Ostin.
Just when his time under house arrest is about to end, Scott Lang once again puts his freedom at risk to help Hope van Dyne and Dr. Hank Pym dive into the quantum realm and try to accomplish, against time and any chance of success, a very dangerous rescue mission.