Stitch has settled into his life on Earth with Lilo and Nani, but his peaceful existence is shaken when he begins to glitch — a result of his molecules destabilizing due to being activated before full completion. At the same time, a mysterious signal from space reawakens hundreds of Jumba’s lost experiments scattered across the Hawaiian islands. With the help of Jumba and Pleakley, Lilo discovers that Stitch’s glitches are tied to the reactivation of the experiments — caused by the return of Dr. Hämsterviel, who seeks to collect the experiments and create a new galactic army. To save Stitch and prevent interstellar disaster, Lilo and her extended ohana must reunite the experiments, stabilize Stitch's core energy, and remind everyone what makes a family.
