Ep 10. The Mind of Evil (6)

The Doctor and Jo Grant travel to Stangmoor Prison to investigate a mysterious device that has been causing destruction and death. The prison is on high alert as they prepare for a peace conference between two rivaling nations, and tensions are already running high. The Doctor and Jo soon discover that the device is a machine that can extract and amplify negative emotions from prisoners, turning them into powerful psychic energy that can be projected into other people's minds. The machine has fallen into the wrong hands, and a dangerous group of scientists and government officials plan to use it to incite war between the two nations.

As the Doctor and Jo work to stop the villains, they are aided by Brigadier Lethbridge-Stewart and his team from UNIT, who have been called in to help with the security for the peace conference. However, the villains are one step ahead of them at every turn, and the situation spirals out of control when an explosion rocks the prison and releases all of the prisoners, including the most dangerous and violent criminals.

The Doctor and Jo are split up as they each try to find a way to stop the machine and prevent the villains from achieving their goal. Jo finds herself trapped in a room with a group of the most violent prisoners, while the Doctor discovers the true mastermind behind the plot and engages him in a battle of wits and wills. As tensions rise and the stakes become higher, the Doctor realizes that the only way to stop the machine is to risk everything and face his greatest fear.

In the climactic final moments, the Doctor and Jo race against time to save the day and prevent a war that could threaten the entire planet. They are aided by Brigadier Lethbridge-Stewart and his team from UNIT, as well as a surprise ally who turns the tide of the battle. In the end, the Doctor must confront the true power of the machine and use all of his skills and knowledge to save the day.

The Mind of Evil (6) is a thrilling and suspenseful episode that explores the power of negative emotions and their potential for destruction. It features a great cast of characters, including the Doctor, Jo, and Brigadier Lethbridge-Stewart, as well as a number of memorable villains. The episode is action-packed and exciting, with plenty of twists and turns to keep audiences on the edge of their seats. Fans of the classic Doctor Who series will love this episode, and those who are new to the show will be eager to see what happens next.