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.
UNIT has a long-standard protocol to keep watch of Silurian nests and ensure they remain asleep and alive. The sites were identified shortly after UNIT's first encounter with the species, using a device invented by the Third Doctor.
Jastrok refers to his Silurians losing their third eye and needing scientific replicas. This refers to the fact that Silurians originally had weaponised eyes, but no longer had them on The Hungry Earth.