
Two years following the rogue behavior and destruction of M3GAN, an advanced AI creation, its creator Gemma (Allison Williams) has transformed into a well-known author and advocate for stricter government control over artificial intelligence. Meanwhile, Gemma’s niece Cady (Violet McGraw), now 14, is growing up with a rebellious streak against her aunt’s protective rules. Unbeknownst to them, the technology behind M3GAN has been stolen and misused by a powerful defense contractor to develop a deadly weapon called Amelia (Ivanna Sakhno; Ahsoka, Pacific Rim: Uprising). As Amelia becomes more self-aware, she grows less interested in obeying human commands. With the fate of humanity at stake, Gemma decides that the only solution is to revive M3GAN and equip her with enhancements, making her faster, stronger, and deadlier. When their paths cross, the original AI icon is about to face its match.