A one hour crossover episode between Ben 10: Ultimate Alien and Generator Rex in which Ben Tennyson accidentally travels to Rex Salazar's dimension. After quarrels with each other, the two finally work together to stop a threat once created by Rex's brother, the Alpha Nanite (Michael Emerson).
| Name | Type | Role | |
|---|---|---|---|
| Man of Action | Writer | ||
| Kenji Ono | Director | ||
| Chris Graham | Director |