Singer - songwriter Ed Sheeran is about to head out on another world tour, claimed to be much more thrilling than his X Tour in 2014. And this time he gets a special surprise when he finds out that his little sister is finally able to tag along for the ride, immediately followed by finding out her best friend is one of the opening acts for his tour. But when he finds out that one of them dropped out, a desperate need for a replacement will change the course of one man's career for the rest of his life. Sterling Knight has been playing small clubs in Hollywood for several years now, about to give up on his chance at a big break, even with his best friend's encouragement. But when a call comes in asking him replace Ed's fall-out opener, things start to look up. Will the spotlight prove too much for him? How did it all start? Online chats. But they don't know that... yet.