When Jackson has a temporary memory loss, Miley dupes him into thinking he worships her. Although she relishes the attention at first, she realizes just how much she misses the playful sparring between them. Meanwhile, Rico's competitive cousin, Angus, is in town from Australia so Rico asks Lilly to pretend to be his girlfriend in exchange for math lessons. Lilly reluctantly agrees but discovers that Angus' so-called girlfriend also has an agenda.