In "Sick Mind", Optimus is infected with the life-threatening Cybonic plague, prompting Arcee and Bumblebee to infiltrate the Nemesis to find a cure for the virus Megatron himself created. As Optimus grows weaker, he learns of Megatron's survival of the space bridge explosion. It was Bumblebee entering Megatron's mind via cortical psychic patch and retrieving the cure that saved Optimus. In the next episode, "Out of His Head", Optimus is, surprisingly, saved by the revived Megatron when he intercepted Starscream's attempted nosedive to kill him.
Entertainment Pack Optimus Prime is a slight redeco of the SDCC figure, with some deco differences between the SDCC release; this version has gray windows instead of blue and is missing some of the silver deco on the helmet and roof/feet, as well as the yellow paint on his lights. His midriff is also darker. Optimus also comes with a similarly-scaled Megatron and PVC figurines of Jack Darby, Miko Nakadai, and Raf Esquivel.
Released as part of the Energon Igniters Power Plus Series subline, this Optimus Prime is a Scout-sized mold that converts from robot to truck based on his appearance in Age of Extinction in just a few steps. His only articulation is the swiveling upper arms & pivoting arm joints, and his fuel tanks also doubles as a flip-out cannons, activated in vehicle mode. As with all Nitro and Power Plus figures, Optimus also comes with an energon core, which allows his vehicle mode to propel forwards.
Voyager figures all feature a spring-loaded MechTech-style transforming weapon, partially constructed from translucent plastic, which lights up via LED when the weapon is deployed. The figures themselves also feature translucent plastic, so the moving LED creates the image of energon power "flowing" from the character's bodies into their weapons. This worked better in theory than in practice. Internally, these figures were referred to by Hasbro as "Powerizers".
The figure was re-released in Hasbro's Asian markets in 2012, with no known changes to the figure itself but several modifications to the packaging that makes it easy to tell the two releases apart: The flap containing the package art is omitted entirely, the "Commemorative Series II" label is missing, the age recommendation and safety warning labels, the "Changes from double tractor trailer to battle station to super robot!" call-out and the name of the toy have all been shuffled around (with the words "battle" and "super" being omitted in the process), and most notably, the toy is no longer named "Powermaster Optimus Prime with Apex Armor", but simply "Optimus Prime", with Apex Bomber's existence no longer acknowledged anywhere on the packaging.
At one time, Optimus Prime worked alongside Megatron, bringing order throughout dimensions with the power of SARA. But Megatron was ambitious, and sought to use SARA's power for his own ends. Optimus saved Metropolis from Megatron's rebellion, and the Autobots banished Megatron from Metropolis. Optimus Prime remained behind as the leader of the Autobots. Fate As head of the space-time guardians residing in Cloud World's Metropolis, he was a valiant and powerful leader who commanded the utmost respect from his subordinates. Optimus Prime stood for peace and freedom for all sentient beings in all of time and space. His sense of responsibility in this regard was a bit too great for his own good, as it often left him worrying about things outside of his control.