I accually dont know the rules in full but if i were to compare it to another sport i'll say baseball [i dont know the rules for that either]
You have a bowler who throws the ball, the batter hits it and runs back and forth between the stumps while the other team in the field get the ball the throws it back. If the other team catches it the batter is out. If it hits the stumps the batter is out. If the batter isnt at the stumps when the ball returns, you guest it, he's out.
I'm sure one of these guy who know the rules can explane it better.
Yeah, but no but yeah but no....