In the first episodes of 2011 series, "The Impossible Astronaut"/"Day of the Moon", River, Rory and Amy (Karen Gillan are contacted by a future version of the Doctor. They are told to meet in the United States. This future version of the Doctor is killed by an person in a space suit. The Doctor's current version is there with them. In 1969, the present Doctor and company meet a little girl (Sydney Wade) who wears the space suit. River tells the Doctor it is a life support unit. The suit has been designed by the hypnotic alien race, Silence. The girl is later seen regenerating in New York City, 1970. In "A Good Man Goes to War," it is learned that River is Amy and Rory's daughter Melody. She was conceived in the TARDIS and has Time Lord DNA. Baby Melody is kidnaped by Madame Kovarian (Frances Barber) to become a weapon against the Doctor. "Let's Kill Hitler" shows that Melody was trained by the Silence to kill the Doctor. After regenerating in New York, Melody became Rory and Amy's childhood friend Mels (Maya Glace-Green) and grew up alongside them. When adult Mels (Nina Toussaint-White) is shot, she regenerates into her next form (Kingston) and kills the Doctor. When she learns she will one day become River Song, someone the Doctor trust, Melody chooses to resurrect the Doctor with her energy. This causes her to lose the ability. The Doctor learns that she is the person who kills him in his future. The Doctor gives her a blank TARDIS-shaped diary, and Melody - now River - begins to study archaeology. At the end of "Closing Time", on the day she receives her doctorate, the Silence and Kovarian recapture River. They, then, put her in the space suit to kill the Doctor as history showed. In the series finale "The Wedding of River Song", River stops herself from killing the Doctor. This created an alternate reality. The Doctor marries River. He gets her to return to the normal history by letting her know how he plans to fake his death. River goes to prison for his murder so no one knows he is not dead.