Hey there!
Jem was in the Radley yard because he was looking at their house. Boo Radley’s brother comes outside with a shotgun and tries to shoot Jem. He misses, and Jem and Scout run. They have to go through a fence. Scout gets through, but when Jem goes through he loses his pants. He wants to go back, but Scout urges him not to. They run back to the house. They ask where his pants are, and he lies. He says that he lost them playing strip poker.
I hope this helps!
