Ancient History

Ancient History is the twenty-fifth episode of Power Rangers: RPM.

Synopsis
Untested technology is found in an Alphabet Soup dumping ground. Truman tries to keep the technology from Venjix but instead stumbles upon a video log that pins Dr. K responsible for the start of Venjix. Truman wants to arrest Dr. K. But if he does, she won’t be able to help the rangers with the dangerous Paleomax technology.

Trivia

 * General Crunch found Mack Hartford's (Operation Overdrive Red Ranger) helmet in the Alphabet Soup cave. However it is not clear if it is the actual helmet as it has the word 'Prototype' across the visor
 * This episodes follows the Alphabet Soup storyline from episode Doctor K.
 * If the Paleomax Megazord was the first to be develop, why does it have the last numbers?
 * Doctor K uses the same cape she used in Episode 6. Also Colonel Truman looks at the picture with his son, previously showed in Ranger Red.
 * It's considered the best allied-themed episode of Power Rangers by fans, due to it's dark tone: Colonel Truman's son death and Dr. K's past with Alphabet Soup.
 * Tenaya 7 and General Shifter's rivalry starts in this episode and will remain until Shifter's Death.