Bandits

"Bandits" is a sidequest of Episode 4: Ho Ho HOOD.

How to obtain the quest
Talk with Bobby Jett in front of the street corner in northeasternmost part of the town to start the sidequest. 

Walkthrough
"Bobby Jett has asked you to find two wanted criminals - Marv and Harry. No one knows their exact location, but Bobby surmises they may be hiding out in Antarctica."

Objective: Find the hideout.
Enter the hideout, a cave in the southwesternmost part of the Antarctica area. 

Objective: Defeat Marv and Harry.
Find and approach Marv and Harry in the northernmost part of the cave to start the battle. 

Objective: Return to Bobby Jett.
After winning the battle go back to Bobby Jett in the same corner where you found him the first time. You'll be awarded with $50.