In pursuit of BellBot, a robot called Accurate Ballistic Arrow Mercenary or A.B.A.M attacks Cattus' village. BoBoiBoy and his friends must travel to Gurunda once again to battle A.B.A.M and save Cattus' friends and family.
Cattus mula mengamuk di Stesen Angkasa TAPOPS apabila merasakan ada sesuatu yang tidak kena pada keluarganya di Planet Gurunda, maka BoBoiBoy dan rakan-rakannya pergi ke sana untuk menyiasat.
