Transformers: The Headmasters
Following on The Return of Optimus Prime (and in place of The Rebirth), The Headmasters is the first Japanese-exclusive Transformers franchise.
9. Seibertron is in Grave Danger (1)
0.0Sep 4, 1987
When Vector Sigma develops a powerful new alloy, the Decepticons initiate an all-out strike against Cybertron to claim it for their own.