In the Whack-A-Thresher side mission of Borderlands 4, Mort wants to get his point across to the threshers. Instead of a standard shootout, this quirky mission has you slamming down on the creatures as they pop up in the fields. Timing and precision are key to success, but the reward makes the effort worthwhile. This guide will show you how to master the mechanic and complete Mort’s unusual request.
Quick Links
Whack-A-Thresher Walkthrough
How to Start the Whack-A-Thresher Quest

To begin the Whack-A-Thresher side mission in Borderlands 4, speak with Mort after some time has passed from completing the Breeding Daisies side mission. You’ll find him waiting at his farm!

How to Complete the Whack-A-Thresher Quest
The threat of violence is often more than enough to get your point across. But these are threshers so there is a 43% chance you get eaten alive instead.
Slam Some Threshers

Mort wants you to slam down on his threshers! To accomplish this task, head to the field across from Mort to the east. There you’ll notice a blue objective marker. Head to that location then press the button to jump up twice then hold that button to slam down. You will need to do this quickly in order to achieve the slam!
After you have slammed down on the first objective, you’ll notice that it moves to another location on the field. Again, you’ll need to perform the slam on the objective. Keep doing this until Mort finally tells you that enough is enough!
Return to Mort
After Mort is happy with your slamming, return to Mort to complete the quest.
Related Borderlands 4 Content
Looking for more Borderlands 4 content? Use the links below to keep exploring our guides:
- Next Guide: Continue with Borderlands 4 Side Missions Guide for complete walkthroughs on every quest!
- Previous Guide: Go back to our Borderlands 4: The Fadefields – The Howl Area Guide to discover every collectible and activity needed for 100% completion in this region.
- Main Page: Visit our Borderlands 4 Guides and Walkthroughs hub for all our latest content!
- Official Website: Check out the official Borderlands 4 website for news and updates!

