Blitzed

"Blitzed" is a sidequest of Episode 3: To Bot Or Not To Bot.

How to start the sidequest
After defeating Gigantitron and going to the other side of the dam you'll find Private Johnson waiting for you. Talk with Fists to start the sidequest. 

Walkthrough
"While you were distracted in the dam, HOOD forces have invaded Shadow Valley to steal the towns supply of grapes. Private Johnson has called upon you to help them eradicate the evil troops in the down."

Objective: Go back to town.
Go back in the first powerhouse area, take the elevator, exit the visitor center and go all the way back to the town.

Objective: Return to Private Johnson.
Go back to the Jean Claude Van Dam to where you started the sidequest and talk to Fists again to complete it. You will be awarded with 300 XP and also with the one-use Orbital Satellite Array Laser weapon. The weapon can be used only once however it carries among episodes so it's better to save it for harded bosses like Commander Hood (the first game battle) or Evil Marty in Episode 1: HOODwinked to get the relative achievements.