Tragedy puts Erica and Dan's wedding at risk, with multiple traumas hitting the ED and Dan feeling responsible for the accident that brought them in. Dan feels helpless when a pre-wedding gag organised by his brother goes wrong and Dan finds himself tied to a tree while a horrific accident occurs right in front of him. Extricating himself from his bonds, Dan does his best to keep the casualties alive and calm while he waits for help. A woman has been badly injured and her husband's panic complicates Dan's attempts to assess and administer first aid to her. The van carrying the goons who "kidnapped" him is a mess and Dan has to rally the less injured drunks to help him