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Sir Hammerlock vs. the Son of Crawmerax is a Headhunter Pack DLC for Borderlands 2. The pack includes a small story, a boss fight with a unique head and skin to unlock, and a secret activity that provides additional loot.

It was the fifth and final Headhunter pack and was released on April 15th 2014[1] for a price of $2.99.

The DLC can be accessed by Fast Traveling to Wam Bam Island where the first mission will automatically begin. The level is set when the area is first visited, but in Normal Mode is at least 15 and at most 35. It is expected that the player has finished the main Borderlands 2 storyline before visiting, though that is not required.


The story takes place on an abandoned island resort called Wam Bam Island. Sir Hammerlock, Lilith, Brick, and Mordecai are there to celebrate Fertility Day. But, Sir Hammerlock has been kidnapped, and the Vault Hunters will need to track him down and ultimately rescue him from The Invincible Son of Crawmerax the Invincible.


This pack includes one story mission and one side mission.

Secret Activities[]

As with other Headhunter Packs, there are a few secrets in Sir Hammerlock vs. the Son of Crawmerax.

Treasure Syringe[]

Throughout Wam Bam Island are three Treasure Pods, which look exactly like varkid pods. When injected with a Treasure Syringe, the pod will turn into a unique type of Varkid that rewards a decent amount of loot when killed. These Treasure Syringes can be obtained from a dispenser on the docks near the Retirement Cottages for a price of 10 Eridium each.


Main article: Wam Bam Island

The only new location in this DLC is Wam Bam Island. It is a medium-sized location populated with varkids, pirates, and savages. Various tropical environments are present, including beaches, underwater tunnels, and savage villages. The location includes a single Ammo Dump and Zed's Meds vending machine and Quick Change location.


Several characters from Borderlands 2 make appearances alongside a few new characters.



The Invincible Son of Crawmerax the Invincible

This pack makes extensive use of enemies from Captain Scarlett and Her Pirate's Booty and Sir Hammerlock's Big Game Hunt DLCs. The Craboid and several variants are introduced as a new enemy type.

  • In addition, there is large mushroom-like vegetation that drops explosive fruit when one stands or passes beneath it. The fruit can be shot, but will regrow immediately.


New Skins and Heads[]

This pack includes a new head and skin for each class. The head is obtained as a mission reward from Fun, Sun, and Guns. The skin is obtained as a drop from fighting the boss Son of Crawmerax. The boss may need to be farmed as the skin is not guaranteed to drop the first time that it is defeated.