When Spike and Bumblebee returned to the Ark with the polarizer, Wheeljack demonstrated the powers of the Immobilizer on a waterfall, where Spike stepped on the remote device and immobilized Wheeljack himself. Luckily, the effects of the Immobilizer were only temporary and Wheeljack reverted to normal a short time later. Unfortunately, Megatron got his hands on the device and was able to change the effect from temporary to permanent.