Ep 1. Children of Earth - Part 1

In the first episode of Torchwood's third season, titled "Children of Earth - Part 1," a mysterious force begins to seize control over every child in the world and causes them to stop moving and speak in unison. The Torchwood team, consisting of Gwen, Ianto, and Captain Jack, is quickly called in to investigate the cause of this strange phenomenon, known as "The 456."

As the team begins their investigation, they soon learn that the government has been aware of The 456's existence for years and has been in communication with them. However, the government is now refusing to share any information with Torchwood, leaving the team with few options for how to stop this crisis from escalating.

As the situation becomes more dire, Torchwood learns that the only communication The 456 will respond to is through a young boy named Clement, who has been chosen as their ambassador. The team must ultimately make a difficult decision about whether or not to sacrifice Clement in order to save the rest of the children in the world.

Meanwhile, Gwen must also grapple with her own personal issues as she discovers she is pregnant and must decide whether or not to tell her husband and leave Torchwood. Additionally, her husband Rhys becomes involved in the investigation and proves to be a valuable asset to the team.

Overall, "Children of Earth - Part 1" sets up a tense and complex storyline with high stakes for the characters and the world as a whole. The episode examines themes of government secrecy, sacrifice, and personal responsibility in the face of impossible choices.