An American-Chinese immigrant makes contact with his grandson in the future via a mailbox. Together they have to deal with their mutual enemies.
Tommy Buck
Mr. Meyer
Shaotian Cai
Chinese thug
Piotr Marzecki
Royce
David R. Nash
Aditya Rawal
Jay
William Yuekun Wu
Bo
Alex Zou
Sam
Jing Xu
Mom
