It's the Generation 1 Insecticons, Shrapnel, Kickback, and Bombshell...
The Insecticons from Transformers: Prime
The story: the G1 Insecticons come across a seemingly abandoned stockpile of Energon. They think the Energon is theirs for the taking, but suddenly, two Mack Truck-sized mechanical Hercules Beetles swoop in and transform into massive robots, ready to defend the stash with their lives.
Here are the G1 Insecticons in battle. Though they're a bit small compared to the average Transformer, they're pretty powerful and resourceful in battle.http://www.youtube.com/watch?v=OjbmjmiKB5A#t=5m55s
Here is an Insecticon in Transformers: Prime fighting Megatron. Keep in mind that Megatron in TF: Prime is bigger and probably more vicious in combat than G1's Megatron.http://www.youtube.com/watch?v=CG2PKbc1fLA
It's the G1 Insecticons trio against two TF: Prime Insecticons.
Who wins and gets the Energon spoils?