UNIT: Assembled

Kate Stewart and her UNIT team investigate and confront alien attacks on the planet Earth. Something is stirring, an old foe to those in UNIT with a long memory. And fortunately, to face an old foe... there are old friends. 4.1 Call to Arms by Matt Fitton Mike Yates braves a stormy night in the Lakes to help celebrate a milestone for John Benton. An evening of fond reminiscences of old glories and friends awaits. But a long-buried past is about to catch up with them. Meanwhile, on the rain-lashed moors, what begins as a routine mission for modern-day UNIT quickly becomes a fight for survival. 4.2 Tidal Wave by Guy Adams When an experimental tidal power generator needs its eco-friendly credentials checked, Kate Stewart calls in an expert. Soon, Jo Jones is bound for 'Project Charybdis' in the South Atlantic, along with an awestruck Osgood. But out at sea, a treacherous plan is set in motion to awake an ancient race. Beneath the seabed an army is sleeping - an army of Sea Devils! 4.3 Retrieval by Guy Adams As the Earth's primeval rulers reclaim their birthright, UNIT must stand against them. Kate Stewart and Osgood venture into a Mediterranean stronghold to retrieve a means to fight back. But a Silurian warrior is on their trail. Once she has the humans' scent, Commander Tryska will never give up the hunt. 4.4 United by Matt Fitton The Silurians hold Great Britain under siege. Grand Marshal Jastrok rules the seas and the skies with reptile forces. On the ground, Commander Kalana crushes all ape resistance. With Kate Stewart trapped, defence of the realm falls to UNIT's old guard. Jo Jones, Mike Yates and John Benton are ready to do their duty and stand united.