A small company dedicated to bringing happiness to the world receives a simple request to help a woman's unhappy son smile again, but the job turns out to be more complicated than it seems.
After beloved frog celebrity Mr. Frog gets into hot frog water, Pim and Charlie are tasked with helping the frog get things back on frog track. Meanwhile, Glep has a crazy side adventure that has the critics going wild.
When a pathetic shrimp calls the Smiling Friends hotline after being dumped, Shrimpina, Pim and Charlie have very different ideas about how to handle the situation. The audience finally votes on the cool new fifth Smiling Friend, Smormu.