Wrapping up Lilo and Stitch: The Series, Stitch and the aliens are being rewarded for their hard work rounding up all 625 wayward experiments with the opportunity to settle somewhere where they will truly belong. Before this can happen though, the gang finds themselves battling the evil Hamsterviel who has escaped prison and forced Jumbaa to create Stitch's evil twin, Leroy. To make matters worse, Hamsterviel has cloned Leroy to make an entire army of dangerous little mischief-makers...