The crew's struggle to escape the derelict ship and avoid collision with the Sense Sphere.

The Doctor’s party enters the spaceship’s control room and discovers the crew in a death-like state—motionless, unresponsive, and physically intact but without visible wounds. Ian confirms one astronaut’s pulse is …

The event begins with the Doctor and companions discovering the Sensorite-controlled spaceship hurtling toward the Sense Sphere, its crew—Maitland and Carol—recently revived from a death-like state. The Doctor deduces the …