The shape-changing robots are driven into hiding when the human race turns against them. When rediscovered by a kindly inventor and his daughter, they come out of exile to save the world, battling a new breed of human-created Transformers. These deadly new machines were created to hunt them down, but are now growing independent and intend to make use of technology from the Transformers' home planet in a plot that could threaten all life on Earth. Fourth film in the sci-fi adventure series, starring Mark Wahlberg, Stanley Tucci and Kelsey Grammer.