"Train arrives in 4 hours. You'll have 17 hours to load its crates and get Flooz, Coins, XP, and Cards!"
You need to complete a number of item requests from Rufus before the train leaves. After all the requests are completed for shipment and the train has departed, you receive 1 Flooz, Coins, XP, and a Card in a random color.
The cards are supplied from Train Station on the Mountain, available in 5 colors. These collectible cards can be used to buy the buildings of the theme: Trade for Cards. They can also be used in the Tailor Shop to make new clothes.