The fifth and final series of the British science fiction programme Primeval began on 24 May 2011 and concluded on 28 June 2011 after airing six episodes. Primeval follows a team of scientists tasked with investigating the appearance of temporal anomalies across the United Kingdom through which prehistoric and futuristic creatures enter the present. The fifth series kept most of the cast intact from the fourth series, the two series having been produced and filmed back-to-back in 2010.