Set in the early 22nd century, MK121 is a tale of political intrigue, corruption, human relationships and action of a kind usually reserved for the realms of science fantasy, but set against a believable background based on past, current and potential future developments. Drake Featherstone is the captain of a space cruiser, the MK121, which is part of the Earth's protection arm, Space Force. Tasked with what initially appears to be a rescue of personnel from an Earth outpost, he and his crew soon discover that all is not what they expected. Meantime, the bulk of the Space Force fleet has been despatched to reclaim an Earth protectorate planet from an aggressive alien empire leaving Earth defenceless and potentially at the mercy of politically motivated forces. Interlaced in the story is the relationship between Featherstone and his first officer, Rachenda Lindberg. Having rescued the beleaguered personnel from the damaged outpost, matters twist and turn until the full truth of why the mission was necessary emerges and the consequences of the despatch of the fleet become obvious. The climax to the story is both dramatic and unexpected.