From website:
The roads to Greybanner, usually quiet and empty, now see assorted carts spread across their length. The Greybanner Grand Tournament approaches and word of it draws fighters from the surrounding regions. They flock along the small roads, passing farms and forest to find the town and its central structure. But there are those that would take advantage of this influx of travelers. Bandits seek to prey upon the merchant carts. One of these carts is accompanied by an eclectic mix of hired adventurers, who seek to make a handful of gold by escorting the trader. They are prepared for the attack, as their cart comes to a fallen tree, but not for the many adventures that will follow.
With everything in and around Greybanner covered, it’s time we move on to the actual adventure! This entry will dive into the first steps of using Greybanner for our ‘Tournament Under the Grey Banner’ adventure. First, we will explain some ways to introduce your players to the town and adventure, whether they be a new party, coming hot off of a previous outing, or even for individual new characters appearing after the unfortunate death of a previous party member. We will also include additions to the town’s history, filling it with secrets and stories that only the DM will know (for now, that is). This will create a basis for our adventure. Both you and your players will be ready to dive into Greybanner’s adventures and the Grand Tournament!