Three ordinary students at Reefside High School crossed paths because they all had detention together. Dr. Oliver was the one in charge of watching these three, and he brought them to a Dino museum. Whlie looking for ancient things, they came across what they would find out to be Dr. Oliver's lab. They took three gem stones and became the Dino Rangers.
When Dr. Oliver was kidnapped by Mesogog's Tyranodrones, he saw a gem in Mesogog's lab that Mesogog wanted him to open. When Dr. Oliver was rescued, he took the gem with him and used the attack from Zeltrax to open the gem, revealing the Black Dino Gem. Dr. Oliver then became the 4th Dino Ranger, the Black Dino Ranger.
Trent took an invisiportal on accident into Mesogog's lab and became the 5th Ranger, the White Dino Ranger, but unfortunately, his powers are evil.
