A local city has a problem of un-separated trash left by citizens. Each player is a company that does the trash separation and recycling for the city.
Use your truck (hand) to take unsorted garbage (cards) from dump sites and deliver each type to its appropriate recycling center. Every delivery that fills a center's quota earns you payment from the city.
However, your truck has a weight limit (5 items/cards), and, if you overload it, you have to dump the excess illegally (which costs money).
The player with the most money becomes the one and only authorized garbage collector of the city.