Voir Transformers, The Complete First Season (25th Anniversary Edition) - Episode 6

While protecting an Earth military plant from a Decepticon attack, Optimus Prime is severely wounded. His only hope for survival is a new Cosmotron unit. The good news is that Wheeljack's got one—the bad news is that it's in his lab back on Cybertron. Chip and an Autobot team must teleport across the Space Bridge and evade Megatron’s attacks in order to restore Optimus’s power before it's too late!