This is the exposition because it is the beginning of the text and introduces the characters known as Sam,Bill, Red Chief and this is also when they kidnapped the kid.
Lets do this
The rising action is that the kid starts to decide that he doesn't want to go home when Bill asks him. This shows the rising action because this is when the problem starts and tension starts to build.
Give me money for my kid if you don't what him
The climax is when the plan of kidnapping the kid backfires, this is the climax because this is when the turning point happens and it starts to become a problem for SAM and bill.
The falling action is when they are staring to act out the plan and their problem is getting sorted.
The conclusion is when they give the kid back to his dad but the dad forces him to pay.
The central theme is that you should think before your actions. This shows the theme because they didn't think and they just wanted to kidnap the kid and they thought they would get money for their kid back but they had to pay the father back because they did not want him.