Two curious children, Brad and Thelma, are kidnapped by aliens, and Dad'X and his team are captured in their attempt at a rescue. Meanwhile, Aglagla finally decides to leave Striker, so Striker attempts to steal the alien technology to replace her.
Striker thinks he's finally found a way to get rid of Dad'X and succeeds in putting a sleeping potion in Gouly's soup. When the alarm rings, only Love-Love and Gadget hear it. Young Clara calls for help as her father fell overboard during a boat trip. A battle between Striker and the elves occurs.
Striker plans to use meteors that explode in contact with water to destroy Dad'X's toy factory. Meanwhile, on Earth, the first child will be sent to space, but the rocket is hit by a meteor and crashes on Christmas Planet.
African orphan Angel writes to Dad'X asking if he can make it rain as they're suffering from a drought. Initially believing this task impossible, Dad'X finds that nothing is impossible with help from your friends.
Skiers Chris and Barbara sneak out at night to play and are swallowed by an avalanche. Dad'X comes to their rescue and the next day, he joins the competition, but of course Striker is there.
Dad'X and his friends go on holiday to Earth. Meanwhile, Aglagla has put Striker to sleep so she can leave, but she accidentally frees his highly dangerous unfinished experiments. The Monsters kidnap Gadget and Love-Love to eat them and destroy the headquarters, and it's a race to save them before they're devoured.
Striker turns himself into a shark to scare away customers of the Vahine Hotel in exchange for a rival resort's energy source. Dad'X catches on and tricks Striker, which triggers a back and forth battle.
Morgan and Oliver are lost in the forest and terrorised by an enormous monster. They call for Dad'X and his team, but it's a trap. Striker plots to attract Dad'X in order to have him roasted by the monster.
Dad'X and the team decide to take a trip to Spain, but Striker follows to spoil their fun. Meanwhile, a young bullfighter has his own problems.
In Russia, Piotr and his grandfather Vladimir want to win the big reindeer race and use the prize money to fix their roof. Unfortunately, their rivals have poisoned their reindeer, but Swamollo comes to their aid.
In Lisboa, 10-year-old Annabella is ill. It's important that she goes to the mountains to recover but her mother doesn't have enough money Dad'X organizes a local circus act to raise money, but, of course, Striker plans to ruin it.
Elzra the witch has been terrorising shepherds so she can buy their land. Dad'X and his team must find a way to stop her. Meanwhile, Striker, who seems to be infatuated with Elzra, offers to help.
A boy calls Dad'X to retrieve his lost dog, only for the crew to find out that Striker has been selling dogs to a circus to earn money to build a toy factory.
Peruvian orphan Tooma is adopted by a French couple. At her new home, she faces discrimination. Heartbroken, she runs away in an attempt to go back to Peru, but Striker wants to hold her for ransom.
Striker plans to make Mt. Fuji erupt and cause chaos in Japan, and Dad'X and his crew must travel up the volcano to prevent the mayhem. But it turns out to be a distraction so Striker can kidnap a class of children and take them to his highly dangerous amusement park.
In Mexico, a diabetic boy named Marco is abducted by gangsters trying to make a deal with his father. His big brother Paco and Dad'X must find him quickly and give him his insulin shot before he dies. Striker sees this and tries to trap Dad'X and the children in a Mayan temple.
In Borromeo, children are disappearing around Lake Maggiore. The locals believe that 15th century troll-like dwarfs are to blame, but it turns out to be Striker who's kidnapping children for his experiments.
Sarah sends a letter to Dad'X asking to reunite her divorced parents for Christmas. Dad'X tries to convince the parents to meet up, but Sarah's brother Chris runs away from home.
10-year-old New Yorker Tommy is bullied because of his weight. Dad'X and his team help Tommy accept himself and confront his bully. However, Striker gives the bully his magic powers and chaos ensues.
In Rome, a boy named Geppetto must bake over 200 cakes for a citywide event while his father is sick. Dad'X helps the child learn how to bake correctly and stops Striker from poisoning them.
Striker's plan on making Dad'X crash his sleigh succeeds. He lands in Scandinavia, where he is sheltered by a nice grandmother. Meanwhile, Striker creates a Dad'X clone and sends it to take over the factory.
In Rio de Janeiro, Diego and his friends find real buried treasure. Diego wants to use the money to rebuild his town whilst his friends want to use it to leave. Striker, however, wants the treasure to build his own amusement park.
Self-conscious 10-year-old Lila enters an ice skating competition but with the help of Dad'X, she'll regain her confidence and improve her skills. Meanwhile, Striker coaches her competitor.
At the New York Zoo, a mistreated white wolf meets a little girl named Lucy, who feeds him. In the middle of the night, it escapes to find her. Lucy shelters the wolf but Dad'X takes him to a sanctuary. Meanwhile, Striker tries to stop his assistant Aglagla from leaving, and does whatever he can to make sure that the wolf is caught.
Striker goes to Scotland and disguises himself as a ghost to terrorise the children. Dad'X and his friends expose Striker's plan and stop him from buying Scottish land for nefarious purposes and stop him from kidnapping one of their friends.
It's Christmas, and Dad'X's elves Gouly, Gadget, and Love-Love are kidnapped by Striker whilst trying to retrieve Christmas letters. Dad'X and his friends must go to Striker's castle and stop him before he kills the elves and burns the mail.
