survivor from the events of "The Poison Sky", Commander Kaagh (Anthony O'Donnell), next appears in The Last Sontaran (2008), from spin-off series The Sarah Jane Adventures. Kaagh appears again in Enemy of the Bane (2008). In Doctor Whos "The End of Time, Part Two" (2010), a Sontaran sniper (Dan Starkey) briefly appears pursuing the Doctor's former companions Mickey Smith (Noel Clarke) and his wife Martha Jones (Freema Agyeman), but is defeated by the Doctor before he can assassinate them. Alongside the Eleventh Doctor (Matt Smith), Sontaran battle fleets are seen in Series 5 finale episode, "The Pandorica Opens" (2010), as part of an alliance of the Doctor's enemies. Series 6 episode "A Good Man Goes to War" (2011) introduces Commander Strax (Starkey), a Sontaran nurse who has been assigned this role as a means of making penance. He fights on the side of the Doctor and his allies, which include the Silurian warrior Madame Vastra (Neve McIntosh) and her wife, Jenny Flint (Catrin Stewart). Strax then appears alongside Vastra and Jenny in "The Snowmen" (2012), "The Crimson Horror", "The Name of the Doctor" (both 2013), and "Deep Breath" (2014). A troop of Sontarans is also shown among Trenzalore's invaders in the 2013 Christmas special "The Time of the Doctor". A Sontaran appears briefly in the 2015 episode "Face the Raven" as a refugee. The appearance of the Sontarans was redesigned for the Thirteenth Doctor's final season, 'Flux', where they reappeared in their first major antagonistic role since 2008. First appearing in the season premiere, 'Chapter 1: The Halloween Apocalypse', the Sontarans plan to exploit the Flux crisis to take over Earth in its various time periods. They sent a group back in time to Crimean War-era Sevastopol in 'Chapter 2: The War of the Sontarans' as a trial run, only to be defeated by the Doctor while Dan and Karvanista take out the main fleet. The Sontarans reappear in the cliffhanger for 'Chapter Five: Survivors of the Flux', where they invade and take over earth during the flux crisis thanks to the intervention of their ally the Grand Serpent. In 'Chapter Six: The Vanquishers', the Doctor and her allies learn the Sontarans plan to trick the Cybermen and Daleks into being consumed by the flux while staying safe themselves by hijacking the Lupari ships, however the Doctor hijacks the ships herself and uses the flux event to destroy the Sontaran