When Time Froze (CON episode) was the final episode of Doctor Who Confidential as a BBC Three television commission. It was broadcast in conjunction with The Wedding of River Song. It was most notable for a lengthy segment called River Song: Her Story, in which Alex Kingston narrated a biography of River Song. The episode also included the debut of Death is the Only Answer, a mini-episode written by a group of schoolchildren as part of the BBC-sponsored "Script to Screen" contest.