In "Adrift", Davidson calls Gwen to investigate sudden disappearances in Cardiff, and admonishes her for her hardened perspective. During the episode he reveals his affection for her and resentment toward Rhys, which Gwen learns is his excuse for not attending her wedding. During "Exit Wounds", Andy helps Gwen in coordinating the police force's response to the bombs planted by Gray (Lachlan Nieober) and Captain John Hart (James Marsters), subsequently working alongside Rhys to keep the attacking alien Weevils out of the police station. In "" (2009), he is present after the Torchwood Hub is blown up. He is ordered by Agent Johnson (Liz May Brice) to lead a team of government hit men to Gwen and Rhys' house. However, Davidson does not believe that Gwen is really a terrorist and subsequently delays Johnson, giving Gwen time to escape. Two days later he assists Gwen in securing the paperwork to bail Clem McDonald (Paul Copley) from police custody. After the death of Ianto (Gareth David Lloyd), Gwen's Torchwood colleague, Andy drives Gwen and Rhys to the council estate where Ianto's sister Rhiannon (Katy Wix) lives with her family. He struggles with his duty as he watches the police and the army forcefully seizing children in order to appease the 456 and ultimately discards his uniform to fight alongside rioting civilians against the authorities. In "The New World" (2011) Andy, now a police sergeant, gets in touch with Gwen and Rhys who are in hiding, and informs them that Gwen's father Geraint (William Thomas) is in hospital following two heart attacks and should have died, but has not. Andy explains that this is due to Miracle Day, a phenomenon whereby death ceases to occur across the world and the gravely-wounded continue to remain alive. Along with other South Wales police officers he assists with CIA agent Rex Matheson's (Mekhi Phifer) extradition of Jack and Gwen to the United States. After the Torchwood team have relocated to Washington Jack learns that Andy has had Rhys and daughter Anwen moved to a safe house. In "The Categories of Life", he attempts to use his sergeant status to extract Gwen's father from an "overflow camp", later regarded as a form of concentration camp, but is unsuccessful. In "Immortal Sins" Andy is called upon by Esther Drummond (Alexa Havins) to rescue Gwen's family from a hostage situation, shooting one of the captors in the process.