Re: Confused about Megatron's plan
There is between the first and the second.
I mean, this is how idiotic the third film is.
Jetfire is a Seeker like Megatron. Jetfire says that only a Prime can defeat the Fallen. When Sam mentions Optimus Prime, Jetfire said that he must have met a great descendant of the original Primes.
But that doesn't even make sense to the third film because if Megatron and Jetfire are both Seekers, then Jetfire surely would've been on Cybertron during the time of the Cybertron War and would've at least seen or heard of the Autobot leader Sentinel Prime, since Prime says in voice over in the third film that Sentinel was the original leader of the Autobots.
Jetfire, since he was a Decepticon via the second film, would've known that.