Main Characters: Scout, Jem, Dill, Boo Radley (Arthur), and Atticus.
They were looking through Boo Radley's (Arthur Radley's) windows to see if they could make out any shapes, any signs of life.
They were shot at and Jem lost his pants, because they got stuck in the fence.
He goes home and sees the parents gathered, so he wouldn't get in trouble for not having his pants on, Dill lied and said that they were playing strip poker with matches.
Jem told Scout he was going back to get his pants from the fence and they went the long way so Atticus (their Father) wouldn't catch them going to the Radley's house because they know they're not allowed there.