It's summertime and everyone wants ice cream! That's great for business, but with Tamiko on vacation with her family in Japan, that leaves just Allie and Sierra to handle the insanely busy ice cream shop. Trying to cover Tamiko's job on top of their own is harder than they thought it would be, and they soon start to feel overwhelmed. Tempers get short and some mean words are spoken. Soon, Allie and Sierra can barely talk to one another without fighting, much less run a business together. Can the girls make up in time to sweeten up their summer rush? Or will Tamiko return to find her business partners have banana-split?