During the final battle, Sentinel battles Optimus, who faked his death, along with all the Autobots. Sentinel proves to be more than a match for the multitude of Autobots and human soldiers. He appears to have gained the upper hand and is on the verge of executing Optimus when Megatron intervenes and beats Sentinel into submission. The pillars are disabled before Cybertron can be teleported completely, which destroys the wayward planet. Megatron offers Optimus a truce, citing that his only desire is to be in command. Optimus, knowing what Megatron has in mind, refuses and swiftly kills Megatron. Sentinel pleads to Optimus to understand why he had to betray him, but Optimus refuses to condone it and promptly executes Sentinel.
- Sentinel transforms into a Rosenbauer Panther fire truck.
- Sentinal Prime will meet Thomas, Twilight Sparkle, and their friends in Thomas and Twilight Sparkle's Adventures of Transformers Dark of the Moon.
- Sentinal Prime will meet Tino and the others in Weekenders Adventures of Transformers: Dark of the Moon.