The activities of the party have caused enough chaos to warrant their arrest. With the Felicity Triskelion confiscated, the adventurers await trial at a remote Azorius Arrester Station 13 in Precinct Four. Unfortunately, they are not alone in the holding cells. When a prominent figure of a brutal Gruul clan is also incarcerated, the Gruul lay siege to the Arrester Station. Other parties, interested in the power of the Felicity Triskelion, join the fray in hopes of making off with the relic. When chaos rises in Precinct Four, will the party survive?