It has been many a few months since the Doctor was in Hexford, and Mrs Wibbsey keenly feels his lack. As her grave suspicions about her new neighbour grow, she actually is at risk of becoming ostracised from town lifestyle. When Mike Yates arises at Nest Cottage using a visitor in tow, Mrs Wibbsey’s existence is turned even more ugly. Why has this strange brand-new fellow made an appearance – and can he really be who Mike feels he is? With UNIT watching the skies, and a strange forest growing daily throughout the community perimeter, it comes as little surprise when an enormous spaceship slides into view and dominates the skyline. Who’s viewing Hexford, and what do they want? Under no circumstances has Mrs Wibbsey required the Doctor even more. But can she cope with two…? With Tom Baker as the Doctor, Susan Jameson as Mrs Wibbsey, Richard Franklin as Mike Yates, Cornelius Garrett as Reverend Tonge, David Troughton as the Visitor, Nerys Hughes as Deirdre and Joanna Tope as Tish, The Hexford Invasion is the fourth of five linked stories written by Paul Magrs.