The Transformers (1984)

S3E26 Call of the Primitives

The malevolent Primacron intends to harness the power of an energy entity called Tornadron to vanquish the Transformers and further his quest for universal domination. At the same time, during a skirmish between Autobots and Decepticons, the animal form Transformers receive a peculiar signal and decide to investigate. This signal originates from Primacron's assistant, who is convinced that these so-called "Primitives" hold the key to defeating Primacron.