In a world where greatness and bravery are essential, Scott Lang is a reformed thief struggling to find his path after being released from prison. Just as his life seems to take a turn for the better while trying to reconnect with his daughter, he is once again drawn into the world of crime by an old associate. Everything changes when he discovers a mysterious suit that allows him to become a tiny superhero, endowed with incredible abilities. This suit, created by the former hero Hank Pym, carries secrets from the past that could have enormous repercussions.
Hank, eager to ensure his legacy doesn't fall into the wrong hands, recruits Scott to become the new bearer of the suit. With the help of Hope, Hank's daughter, Scott must learn to harness his new abilities and face a dangerous enemy: the imposing Darren Cross, who has developed his own version of the suit with sinister intentions. In a race against time, Lang and his team must execute a daring plan to steal technology that could threaten countless lives while confronting their own personal demons and fighting for his relationship with his daughter.
Filled with action, humor, and heartwarming moments, this tale shows how bravery is not always measured by size, and that love for family can empower even the smallest of heroes to achieve great feats.