What happens when an irresistible force meets an immovable object? For WWE fans, that question took on new meaning in February of 2011, when The Rock returned to the people's ring and began a rivalry with John Cena that culminated in the two icons' Wrestlemania XXVIII "Once in a Lifetime" showdown the following April. Follow the story of the duo's year-long feud, and learn about each man's life in and out of the squared circle, in this retrospective program. 180 min. Standard; Soundtrack: English.