S4 E1 • One Law, Part 1: One Law for the Poor

Mike, a new Tomorrow Person, uses his telekinesis to open a neighbour's door. Meanwhile, John, Stephen, Elizabeth and Tyso return from the Galactric Trig, arriving in a dusty and cobweb-covered Lab. Mike's neighbour, Mister O'Reilly, is visited by two heavies, Two Tone and Slow, who want money that O'Reilly owes from gambling at Lord Dunning's betting shops. Unable to pay, O'Reilly tells them about Mike's ability to open locks; he brings Mike to meet them, and they trick him into showing his power, and then blackmail him into helping them break into the National Victoria Bank. After opening the locks and overriding the alarm systems. Mike tricks the heavies, locking them in the vault. His laughter is heard telepathically by John, Elizabeth and Stephen, who decide not to contact him in order to reduce the problems of breaking-out. A police inspector, Burke, releases Two Tone and Slow, but they refuse to talk. The next day O'Reilly asks Mike to his flat, as Lord Dunning wants to meet him.

Première diffusion : 28 janvier 1976

S4 E2 • One Law, Part 2: Another for the Rich

John and Stephen jaunt to the bank vault and discover that psychokinetic energy has been used; using their contact with the Prime Minister they arrange a meeting with Inspector Burke. Lord Dunning threatens Mike's family, but the boy uses his powers to frighten him off. After Two Tone and Slow are interrogated by John, the Tomorrow People visit O'Reilly, who tells them that Dunning has kidnapped Mike, his mother and sister. Burke takes John, Stephen and Elizabeth to Dunning's country house, but the Lord denies any knowledge of Mike. While Dunning and his heavies visit O'Reilly, Mike opens the lock on the cellar door, and he and his family escape. Mike manages to attract the attention of Burke, but he, his mother and sister are recaptured when Dunning and his butler Thwaites create a diversion. Burke calls Tim on the special telephone number and tells him of his sighting of Mike. He then organises a raid on Lord Dunning's house.

Première diffusion : 4 février 1976

S4 E3 • One Law, Part 3: Which Prohibits Them Equally from Stealing Bread

Mike hears the commotion, and tricks his guard into firing his gun, alerting the inspector, who releases them. John tells Mike and Burke that they cannot prosecute Dunning as it would draw attention to Mike's ability. Stephen teaches Mike how to jaunt, but Mike is still upset about Dunning, and goes to see him, offering to go into partnership with him. Stephen sees Mike getting out of Dunning's Rolls Royce, and brings him to the Lab, but he refuses to talk to the Tomorrow People, and jaunts away. However, John has planted a bugging device on the Rolls Royce. Mike arrives at the American Union bank, and opens the door, allowing Lord Dunning and Thwaites to enter. On a tip-off, Inspector Burke follows them in, and tries to arrest them, but Thwaites threatens to shoot Mike. But Mike jaunts, and the Inspector faints. Following the tracking signal, John, Stephen and Elizabeth jaunt to the vault and capture Lord Dunning and Thwaites. Mike joins the Tomorrow People.

Première diffusion : 11 février 1976

S4 E4 • Into the Unknown, Part 1: The Visitor

When Tim detects a signal from a drifting shuttlecraft, John and Stephen investigate and find a young humanoid alien called Kwaan. They take him to the Lab, where he tells them that he left the Father-ship to get help from his home-world of Regiorra. Kwaan communicates with the planet�s ruler, Tirayaan, who sends power to the shuttlecraft. Mike, John, Stephen and Kwaan return to the shuttlecraft, but it has drifted too far off-course and Kwaan will be unable to return to Regoraa, and so he decides to return to the Father-ship, which is trapped near a hole in space. As they approach the Father-ship the Tomorrow People lose communication with Tim and Elizabeth, and are unable to jaunt due a force-field.

Première diffusion : 18 février 1976

S4 E5 • Into the Unknown, Part 2: The Father-Ship

Elizabeth jaunts to the spaceship with a small box which acts as a connection to Tim, which they connect to the power system on the ship. Tim tells them that they cannot jaunt back to Earth until they find a solution to the force field, which may be on the father-ship. Arriving at the father-ship, they meet Tirayaan, who informs them that the ship will be dragged into the hole in two days, and that it has been seized by the rebellious Vektaan as part of a plot to take control of the homeworld. Vektaan captures the Tomorrow People, Kwaan and Tirayaan, but John and Stephen offer to help him save the father-ship, and, together with Tim, they work on the bridge controls. Tirayaan admits that he set the ship on its course, and John tells Vektaan that he will save the father-ship if all the prisoners are put onto the shuttlecraft, with enough power to get them back to Earth. Vektaan aggress and allows them to leave in the shuttlecraft. John returns control of the father-ship and jaunts to the shuttlecraft, but Tim's box is destroyed, and they realise that Vektaan has programmed the small ship to fly into the hole.

Première diffusion : 25 février 1976

S4 E6 • Into the Unknown, Part 3: The Tunnel

As the shuttlecraft enters the hole, the temperature inside begins to drop. Timus arrives at the Lab and boosts Tim's power, enabling him to locate the shuttlecraft in the hole, but the picture fades as the shuttle goes out of range, and Timus is recalled to the Galactic Federation to report. Another hole appears directly in front of the shuttlecraft, and the Tomorrow People notice that their watches have stopped, despite their being in the hole for seven or eight hours. The shuttlecraft slows down and the reactors begin working again.

Première diffusion : 3 mars 1976

S4 E7 • Into the Unknown, Part 4: The Circle

As the shuttlecraft slows down and the reactors begin working again, they approach the hole and see stars. On the father-ship, Vektaan sees the shuttlecraft re-emerging from the hole. Tirayaan tells them that they have travelled in a circle, and that it has only been a few minutes since they entered the hole. Vektaan informs them that he has abandoned the rebellion, and wants them to return to the father-ship. But when Tirayaan tries to contact Vektaan, the Father-ship fires at the shuttle craft; one of the energy bolts enters the hole, and returns a few seconds later, destroying the father-ship. The Tomorrow People, Tirayaan and Kwaan return to Earth.

Première diffusion : 10 mars 1976