there should be more DP and TF crossovers. so here is my contribution (plus i had the plot rolling around in my head) this takes place after predacons rising. for DP Phantom planet never happened.
Of ghosts and robots
Starscream streaked across the sky. His nose pointed towards the rising Cybertronian sun. It was very much a beautiful sight to behold. Its golden rays illuminating the horizon. It would've been a great morning to celebrate Megatrons relinquishment of the title of Decepticon ruler. Would have, except for the fact that there were three angry predacons on his tail.
But then who could blame them. Starscream had after all treated them like dirt. Nothing more than mindless creatures, not like sentient being they truly were. To Starscream they were pack mules, work horses and attack dogs rolled up into one package.
Now tables have turned and now the predacons wished to have their revenge. Revenge for the way they were treated and abused. They wanted to tear the Decepticon apart with their claws, and have him feel their wrath.
Panic and fear overwhelmed Starscream. His engines on overdrive, whined over the strain. He banked hard left to dodge another stream of fire, a predacon roared in frustration. His mind worked feverishly to devise some sort of escape plan, but nothing came to.
He was about to lose hope of seeing another morning when something caught his eye. On his right was a swirling green portal. "what is that?" thought Starscream, it looked like a ground-bridge, but why would it be here in the middle of nowhere much less a few hundred feet above the ground. The only ones that had access to that technology where the Autobots and their allies.
Starscream did not have much time to ponder such things as the vengeful predacons blasted another fireball. He changed course for it. He did not know where that portal led but the roars and screeches behind him told him that anywhere was better than here. Starscream saw the portal start to close, he pushed him self to go faster. He fled through it before it closed behind him, leaving three angry predacons to roar in frustration over their lost prey.
Starscream instinctually transformed and held out his hands, "please don't hurt me," he cowered. He looked up to see no one. In front of him was not the dark halls of the Nemesis, or the Autobot base. No, in front of him was an endless green expanse.