When the joker Tommy Tricker plays some practical jokes on some of his friends, his best friend Ralph, a stamp collector, discovers the secret of "stamp travel" to make him travel around the world on a stamp to bring back the mysterious Charles Merriweather, who never returned on a stamp for 75 years.

The adventures of Elvira, a 12-year-old girl obsessed with the sea who develops the ability to breathe underwater. Elvira and her dolphin friend Elvar meet a friendly whale, among other creatures, while back on land all is not as it should be.