My Short Story Plot

My story is about a man who is challenged to do the gallon challenge. The gallon challenge is when you drink an entire gallon of milk in one sitting. My character accepts the challenge and spends an entire day training for the gallon challenge. I think I am going to use some of the plot devices we learned in class, but I don't know what I am going to use.

The rising action will be when my character will be challenged by the campers across the lake. I haven't figured out what my climax will be, but I think it might happen while he is training for the challenge. The falling action will be when it is time to complete the gallon challenge, and starts drinking the milk and then throws up from all the milk in his body, but still keeps drinking. The resolution will be when he decides that he can't finish the challenge, but then his dad, who he hasn't seen sense he was twelve will show up and finish the challenge for him. The morale of the story is that you should always help somebody when they are in the time of need.