A new addition to the action anime on AC is Gravion, here is a Synopsis:
When mankind faces an alien force with technology light years ahead of its own, it may take a man obsessed with the past to save the Earth. The fate of humanity rests on whether the eccentric billionaire Sandman can build a machine as great as the myths of old. His creation is a god for the modern age, a deity forged of circuits and steel – it is Gravion!
Only a young band of orphaned misfits are born with the ability to pilot this top secret weapon. All life on the planet depends on how well they can fight the Zeravire – if they can only stop fighting amongst themselves!