There's the standard thumbnail background of the Odysseys and Overlords setting and notes about suitable rules (handy if you've just picked this up without reading anything else in this game line), then we're off with the background to the adventure itself. It seems a bunch of goblins has been hanging out on the edge of an area of wilderness hoping to pick off adventurers going there to explore (or even better, coming back with their loot!) but a leadership dispute led to the loss of a magic dagger... which fell into their watersource, with dire results.
The party first find out about all this when they, like any adventurers worthy of the name, head into the wilderness - or snap up one of the plot hooks provided - and are accosted by a couple of hungry, grubby goblin youngsters who ask for help. This encounter should prove entertaining. Provision is made for it taking place either in the day or during the night, and there's plenty of detail to help you role-play it to the hilt.
Hopefully, with an optional encounter on the way, the party with the youngsters guiding them should arrive at the goblin lair. It's even smellier than the words 'goblin lair' suggest, for reasons that should become apparent as the delve into its depths proceeds. Everything is laid out clearly, with ample description, stat blocks/hit point check boxes for all encounters and other game mechanical information as necessary.
As with the young goblins in the opening encounter, it pays to try talking with at least some of the inhabitants of the lair, for if the party does so, they will be able to piece together what has been going on, as well as undertake the expected exploration, killing and looting. Whatever the party decides to do about the goblins, there are other monsters to slay and loot to be had.
Everything is left quite open ended. The party might help the goblins and continue exploring the wilderness, or they might - especially if you used one of the plot hooks provided - want to go back to town. There are suggestions for some further adventures and a welcome selection of 'story-based' XP awards that you can make based on the party's actions. There are a couple of new items and a new monster, and maps for both players and the GM.
Whilst OSR in essence, this has a welcome range of options for interaction and role-play, and is well-resourced to enable you to cope with just about anything your players might decide to do.