4K ULTRA HD REVIEW / HDR SCREENSHOTS Dwayne “The Rock” Johnson became a major action star after playing Beck, a “retrieval specialist” for his boss Billy Walker (William Lucky). Walker has one last request for Beck: to retrieve his wayward son, Travis (Seann William Scott), from the Amazon. (2) Town boss, Hatcher, played by Christopher Walken, runs the mining operation in the town of El Dorado with his sidekick, Harvey (Joe Gries). (Click an image to scroll the larger versio