Episodes 1-3 are jolly, everyone collaborating and enjoying the bounty of the island
Episodes 4-6, resources get tight as competing projects demand concessions. Trade networks are strained and tempers begin to flare
Episode 7, a band of thieves raids the village, steals all the clay, and claims the clay pits as their own. The village can't produce any bricks to build a road to the harbor.
Episode 8, an army of knights arrives and removes the band of thieves, only to take the remaining clay and then sit on a wheat farm as a form of extortion.
Episode 9 (finale), village raises its own army and pushes the invaders out. Key characters die, but the sheep Barron remains and advocates for the harbor initiative.
Post credit scene involves a view of a large city, inside the city a great market is being built. Pan to a dude in a fancy sheep cape grinning and sliding another marker on his abacus. It shows 8 pieces on one side....
http://i.minus.com/i5EWBMXTN4ERv.gif