Story related. Complete the ‘Michael Anders and The Holy Grail’ quest, after defeating the vomiting Slobber mini-boss on outside the film set with the big mechanical spider.

If you're struggling to defeat Alesis Hernandez, AKA the acid spewing boss, then we've prepared a detail Dead Island 2 Alesis Hernandez boss fight walkthrough if you need it.

Jump through the link for a list of all Dead Island 2 main story missions.