BoBoiBoy Galaxy is a story about the Power Sphera, robots that were created to give superpowers to their owners. However, the Power Sphera project was eventually deemed a dangerous project and canceled, and many Power Sphera fled and hid in all corners of the galaxy. Craving their power, many evil aliens try to find and capture the Power Sphera for their own benefit. To prevent the Power-Power Sphera from falling into the wrong hands, a young hero from Earth, BoBoiBoy, and his friends are tasked with tracking down and protecting the Power Sphera scattered across the galaxy with the help of an intergalactic organization, T.A.P.O.P.S.
Cici Ko and MotoBot have been trapped in space from the Power Sphere Hunter and the pirate minions started to head to Cici Ko's spaceship. BoBoiBoy and Gopal took the opportunity to become a hero by defeating that Power Sphere Hunter.
Adu Du and Probe arrived on Earth and has captured MotoBot. Then Cici Ko, Ochobot, BoBoiBoy and Gopal track MotoBot's location to save him and at the same time they also fought with their old enemies.
Having returned back to Earth from their mission on the planet Gurunda, BoBoiBoy and friends are suddenly attacked by Captain Separo and his band of Space Pirates, who attempt to steal all the Power Spheres.
BoBoiBoy with his friends departs on the Cici Ko's spaceship to travel to TAPOPS Space Station, but a stowaway causes some problems. The travel might not be so safe after all.
While on the way to the TAPOPS Space Station, BoBoiBoy and the others received a distress signal from the TAPOPS Space Station, only to find that things were not always as they seem.
BoBoiBoy, Fang, and Gopal are sent on a mission to deliver some bags of laundry to a client on a dangerous planet called Dargha'ya, but it looks like someone else is ready to sabotage the mission.
BoBoiBoy, Gopal and Fang are still in Planet Dargha'ya, trying to find the mysterious recipient and complete the mission. However, their mission is in peril when Adu Du has gone insane.
Upon returning to TAPOPS Space Station, Tarung is enraged to find that Koko Ci has hired BoBoiBoy and his friends as TAPOPS agents. With that, Tarung gives them a series of tests to ensure that they are indeed qualified to be TAPOPS agents.
