Transformers: Stolen Gem

As Optimus rebuilds his Aubot team, Megatron has been plotting his next move with the help of Shockwave. A young Decptiacon sparkling named Sunny, has taken an interest in the Autobots and plans to someday join them.
After a small war breaks out on earth between the Cons and Bots, Dino finds it difficult to stay amongst the Cons. Soundwave and Shockwave aren't happy with their betrayal, and Megatron is especially angry about it.
Later, Harper (a human) joins the Cons and quickly befriends Knockout and Aaron.