The goblins in the region want to get a hold of the sentient sword, Goblingrief so that they can destroy it. They've taken a hostage in order to show they mean business. It's up to the party to find this mythical sword and get the captive back. That's where you find yourself in Goblingrief, a new adventure for D&D that's up on Kickstarter now.
From the campaign:
The adventurers are hired by Lord Brendat Aradu to rescue his fiancé from a band of goblins who are holding him for ransom. What the goblins want is the sentient sword Goblingrief so that they can destroy the blade. Lord Aradu claims the sword is in the catacombs, and if the party wants it, they’ll have to go get it. A D&D 5e adventure for 1st-3rd level characters, written by Karrin Jackson.
The campaign's up and over its funding goal with 20 days left to go.