Craig is leaving because of Sarah's stance on deployment. 

But he wants to get married before he leaves. 

His girlfriend ultimately says no, but she starts to wonder what it would be like to get married. 

She goes along with it. 

They have a big wedding that was planned at the last-minute. 

However, things take a turn when they go to a house to have a rager. 

Danny gets close to two women, while Harper and Fraser seem upset about recent events. 

They go out of their way to make sure they have a good night. 

However, Sam is upset about the way Caitlin is moving on with the new kid. 

In the end, the party is drama-free and Craig leaves the next day as everyone else gets sleeps off their hangovers.