In the 10th season opener, Kelly was arrested at the start of
the episode. I have not personally seen the episode, so tell
me what happened in the opening scene. Can anyone give me any dialouge from the opening scene?

Matt comes into the store followed by the police. The police has them handcuffed and on the floor and Kelly tells Matt that's the guy who raped her and Matt tells Kelly that he had defended him and kept him from jail. They take Kelly and question her and ask where the unregidtered gun came from. Matt asks Dylan about it and Dylan admits to Matt that he got it for her.
Hope this helps some!