A mysterious artifact is excavated from the Ultra-Ancient ruins. As GUTS-Select investigates, the treasure Ignis had been hunting awakens Oka-Gubila! With the town in danger, Kengo must transform into Trigger to make everyone smile!

A massive monster with huge horns has suddenly appeared. That monster is Deathdrago, the first monster that appeared before humanity six years ago. Faced with Deathdrago’s return, Akito seems to have gone a little strange. What connection could there be between Akito and the monster that begins it all!? And will Kengo be able to make Akito smile!?

The mysterious robot Satandelos only moves for one hour each day. None of Trigger’s attacks can get through its super strong barrier. After a series of defeats, Trigger and GUTS-Select search desperately for a way to take down the barrier, but they don’t even know where to begin… That is, until an unexpected figure appears before them!

The Giants of Darkness begin their fierce attack! Calmaerra drives Trigger into a corner and uses a spell to engulf him in darkness. Kengo resists with all his might, but then! A rift in space-time appears, and Kengo is flung back to the past. Now he finds himself 30 billion years prior in an ultra-ancient era?!

The truth I discover as I face the dark Trigger... It's an Ultra-Ancient memory hounded by destiny. When Yuzare's wish sparks a miracle of light across the ages, the greatest Trigger awakens!