Ep 13. The Brink of Disaster (2)

As the Doctor attempts to repair the TARDIS, he and his companions are suddenly overcome by a poisonous gas and are left unconscious. When they come to, the Doctor discovers that the TARDIS has been thrown off course and they are headed directly for a collision with the planetoid Desperus. Meanwhile, Barbara and Susan are trapped in a malfunctioning lift and must find a way to escape before it drops them to their deaths.

As the situation becomes more dire, the Doctor realizes that something is causing the TARDIS to malfunction, and soon discovers that a strange, alien power is at work. As he works to repair the ship and prevent the collision, he must also unravel the mystery of the alien force that is attempting to destroy them.

The situation becomes even more complicated when the mysterious force begins to possess the minds of the Doctor and his companions, turning them against each other in a battle for control. As tensions rise and the clock ticks down, the Doctor must fight to regain control of his own mind and find a way to save his friends before it's too late.

With intense action, gripping suspense, and a mind-bending mystery at its heart, "The Brink of Disaster (2)" is a thrilling episode of Doctor Who that is sure to keep viewers on the edge of their seats from start to finish. Don't miss this captivating adventure as the Doctor races against time to save his companions and prevent a catastrophic collision with Desperus.