When a dangerous space criminal comes looking for Ryoko, Tenchi and the gang must spring into action! They'll need a spaceship to give chase, and Ryo-Ohki might be able to help!

After what happened to Tenchi, the girls are out for vengeance! Back on Earth, Sasami summons a battleship and Mihoshi sets and ancient genius free!

Life is chaotic at the Masaki household as Ayeka and Washu plant a spaceship, Ryoko makes a play for Tenchi, and Mihoshi is tricked into reporting back to GP Headquarters.

Tenchi and the girls are charged with the duty of looking after his baby cousin, Taro, for a few days. As can be expected, chaos ensues and before too long the girls have run themselves ragged. It takes Washu to show them how to care for a baby, but even under her instruction they cannot cope, so Washu takes on the job single-handedly.

Ryoko accidentally damages a robe that belonged to Tenchi's late mother. When Tenchi yells at her, he accidentally upsets Ryo-Ohki as well. The heartbroken Ryo-Ohki sulks in Washu's laboratory, where her emotions affect a colony of shape-shifting creatures (the same creatures used as a base for Ryoko and Ryo-Ohki), causing them to break out of the lab and make a beeline for Tenchi.