由于在“内战”中站到了美国队长一方，蚁人斯科特·朗（保罗·路德 Paul Rudd 饰）遭到了FBI的禁足惩罚。眼看离真正的自由还有几天功夫，偏偏麻烦找上门来。原来初代蚁人汉克·皮姆（迈克尔·道格拉斯 Michael Douglas 饰）通过研究发现，他的妻子黄蜂女（米歇尔·菲佛 Michelle Pfeiffer 饰）一定还活在量子领域，而斯科特是能够将妻子带回现实世界的唯一希望。不由分说，汉克的女儿霍普（伊万杰琳·莉莉 Nicole Lilly 饰）将斯科特带出房间。此后不久，他们不仅要躲避FBI的纠缠，更要提防来自神秘势力的袭击，而“幽灵”的出现更将斯科特等人带向前所未有的混乱当中。 　　斯科特能否顺利获得自由？初代黄蜂女是否还存活在量子领域的某处？In the aftermath of 'Captain America: Civil War,' Scott Lang grapples with the consequences of his choices as both a Super Hero and a father. As he struggles to re-balance his home life with his responsibilities as Ant-Man, he's confronted by Hope van Dyne and Dr. Hank Pym with an urgent new mission. Scott must once again put on the suit and learn to fight alongside The Wasp as the team works together to uncover secrets from their past.