Science fiction drama. The Sparticles discover the oldest man in the world in his circular garden. Is he the last clue for them to rid the world of Queen Kylie?

Science fiction drama. In a world with no adults, now ruled by teenagers and the monstrous Queen Kylie, the Sparticles join the fight for survival.

Science fiction drama. Reese uses her 'powers' and the help of Holodora to work out the secret to ridding the world of Queen Kylie and the Teen Parents.

Science fiction drama. Reese and Aris have a close encounter with the missing adults, and Holly's mystery illness is diagnosed by a new sensitive with healing powers. Show more

Science fiction drama. Queen Boudicca's daughter wants to help the Sparticles fight against Queen Kylie but she urgently needs to return to fight the Romans. Show more

Science fiction drama. Ernesto and Serena stage a daring raid on Kylie's Citadel, where Dora's discoveries have assisted Queen Kylie in her plans for world domination.

Science fiction drama. Both Queen Kylie and the Sparticles are held up in the race to the circle of perpetual time by troll queen Trina. Show more

Science fiction drama. The Sparticles' mission to send Queen Kylie and the Teen Parents back to the dimension they came from hits a snag. Show more

Historical game show. In the last of the series, Dave Lamb and Rattus Rattus have got some famous faces in for a Gory Games celebrity special. Show more

Science fiction drama. Ernesto stages a rescue mission to spring Orion from Kylie's citadel and learns how he was nearly named something far less revolutionary. Show more

Children organise a wedding for their unmarried parents or step-parents. A look back at some of the most outrageous moments so far. Show more

Science fiction drama. In a haunted house where a ghost buster is busy disproving the existence of a ghost, why are the Sparticles disappearing one by one?

Science fiction drama. Knights in armour have the remedy for Jeffrey's survival from a vicious sting, but the knights have other priorities. Show more

Science-based game show. CBBC HQ stars Katie Thistleton, Karim Zeroual and Lauren Layfield take on two young teams in a mash-up of science, entertainment and insanity. Show more

Science fiction drama. Frankie's hunt for her lost rabbit discovers the spooky forest-dwellers, a new sensitive and a case of identity theft. Show more

Science fiction drama. After a year's fruitless quest to find the adults, the Sparticles find the key that they have been carrying for so long fits into a clue. Show more

Science fiction drama. In the race to the Quantum Nexus to bring the adults back, the Sparticles encounter friends and enemies in their search for the next vital clue. Show more

Science fiction drama. A race to discover a leaping white horse leads the two tribes to a circus where Serena must explain to her sister whose side she is on.

Science fiction drama. The hunt for the Quantum Nexus takes the competing tribes to Peace City and a fight over the sword reveals its special power.

Science fiction drama. A creature that eats children is the next obstacle to prevent the return of the adults and the race to the Quantum Nexus.