Dragonball GT Episode 18: Hey, Some Data is Missing! Goku's Ultimate True Determination

(English title: Unexpected Power)

(original, Japanese episode)

Goku tells Trunks to take the unconscious Pan back to the spaceship. Then he begins to fight the remaining Sigma Force. Although Goku is the superior in strength, the Sigma Force can predict his every move, and so they have the advantage for a while. They inform Goku that the reason that they will surely win is that Giru gave them all of his [Goku's] fighting data. They also tell Goku that his only purpose now is to become one of Dr. Myuu's experimental specimens. And General Rirudo looks on, pleased at what he sees.

The fight continues. The Sigma Force manage to hit Goku with many good shots because they can predict his moves, and can hide in the walls. To counter this, Goku just fires random shots all over the place and manages to hit each of them.

Trunks arrives with Pan back at the ship. He looks to see if the dragonballs are still there, and of course, they're gone, Giru took them. Pan wakes up and yells at Giru for being such a "lousy traitor".
In order to defeat Goku, the Sigma Force combine into one robot, the Sigma Force cannon. General Rirudo looks on, knowing that this is it for Goku's little rebellion. However, now that Goku is actually trying, he is clearly the superior fighter. He tells the SF cannon that it could never win because it is too slow. Therefore, the SF cannon does nothing other than transform into a faster version of the cannon. Goku still dodges with ease, and Rirudo begins to realize that he is toying around with them.

Meanwhile, the SF cannon is firing laser shots at Goku to keep him on the run, and they catch up to him, fist-smashing him down to the ground. The SF cannon then transforms to have a large drill and tries to kill Goku once and for all, apparently forgetting about its mission because of its own rage. Ultimately, Goku stops the drill with only his bare hands after powering up. He reveals to the SF cannon that he wasn't even using a 100th of his power in their fight. He flurry punches it, throws it high into the air, and unleashes a huge kamehameha to finally destroy the Sigma Force Cannon. Rirudo is extremely pissed and leaves to capture Goku himself.

Goku feels hungry but forgets about it once he feels Rirudo's tremendous energy heading towards the spaceship. He flies back to the ship to protect the others. But will he get there in time to warn them of the upcoming danger?