Commander Keen in Goodbye, Galaxy!: Secret of the Oracle

In "Commander Keen in Goodbye, Galaxy!: Secret of the Oracle," the first episode of the fourth series, protagonist Commander Keen travels to an alien planet to rescue the Keepers of the Oracle. These Keepers hold the key to information about the Shikadi, a powerful and mysterious enemy. Keen's mission is to extract this knowledge and continue his fight to protect the galaxy.