Episode Title:Crash Course.Episode Description:The Fireworm Queen comes to Dragon's Edge to recruit Snotlout and Hookfang for help in warding away a dangerous scavenging predator, the Cavern Crasher. Snotlout is determined to repay the debt he owes to the Queen for saving Hookfang's life to the point where he refuses help from the other riders. As the divided riders struggle against the Crasher's detonative mucus ability, the Queen guides Snotlout and Hookfang to her hive, revealing she needs help defending her babies. When the Queen and riders all unite, it proves to be too much for the invading Crasher, and it retreats. Hiccup credits Snotlout for a job well done and the twins reward him with a carving of his face in a monument back at the Edge.