Olympus was a mysterious planet inhabited by the Olympians.
The Fourth Doctor and K9 Mark II were brought to the planet by Prometheus after freeing him. Once there, they were brought to Zeus by Aphrodite. Prometheus was questioned about his actions in stealing life spores and starting life in the universe, and was placed in a confinement cell. Prometheus escaped with the help of the Doctor and K9, and the three left in the TARDIS to other regions of the galaxy. (COMIC: The Life Bringer!)