When a planet full of dinosaurs is threatened by an asteroid, Miles and his family must unravel ancient secrets to save them.
- Justin Felbinger as Miles Callisto
- Fiona Bishop as Loretta Callisto
- Olivia Munn as Phoebe Callisto
- Tom Kenny as Leo Callisto
- Dee Bradley Baker as M.E.R.C.
- Grey DeLisle as Stella/Oumou
- Danny Jacob as Watson
- Diedrich Bader as Crick
- Bill Nye as Professor Rubicon
- Lyons Mathias as Darrah
- This is the second half hour-long episode in the series, followed by "Galactech: Secrets of the Black Hole".
- Oumou makes her second appearance since "Galactech: Secrets of the Black Hole".
- The mystery of how the dinosaurs arrived on Planet Dammacleeze is revealed.