"Girls" actress Allison Williams teams up with killer bot M3GAN in the final trailer for "M3GAN 2.0," which arrives in theaters June 27.

Allison Williams joins the fight to save humanity in the final trailer for M3GAN 2.0. Based on the fresh footage below, roboticist Gemma (aka creator of the eponymous doll that went on a killing spree two years before the sequel kicks off) dons a super-suit controlled by her wayward technological brainchild.

Unbeknownst to them, the underlying tech for M3GAN has been stolen and misused by a powerful defense contractor to create a military-grade weapon known as Amelia (Ivanna Sakhno), the ultimate killer infiltration spy.