S1·E59 Galactech: Secrets of the Black Hole
Aired March 18, 2016
Synopsis
When a black hole reveals a clue left by an ancient race, the Callistos discover a secret galaxy containing the key to saving their own.
Aired March 18, 2016
When a black hole reveals a clue left by an ancient race, the Callistos discover a secret galaxy containing the key to saving their own.