Finding the Plant

Before you can do anything, the plant...tips over!? This is a fake. THIS IS A TRAP. All of the sudden, Bloons run towards you at the last minute. But then, Mr. Beast shows up and says "Ok, you've got an hour to spend $100,000 dollars. 321, GO!", then he just runs into the distance. What are you even going to do with $18 bucks against 50000 bloons?