Warm Hearts Day is approaching and Eva has been making lots of fun gifts and treats for her friends, but as the big party at the Old Oak Tree nears, she realizes that she has neglected to make any gifts for her family.

Despite disagreements on the wisdom of the adventure, Rainbow Tinseltail and the other unicorns set out for Snowbelle Mountain to find out if Yetis are real--and when they get caught in a blizzard and take shelter in a cave they find the answer to their quest.

Eva is planning a big sleepover for her "hatchday" celebration, but one of her friends, Sue, does not seem to want to attend--so Eva must find out what is bothering Sue, and help her get over her first-sleepover jitters.

Eva decides that warning all the animals in the forest about the approaching storm is a perfect project to prove herself worthy of taking the Owl Oath, but when she stops to help a lost pony and they get caught in the storm, they have to take shelter in a cave, and end up helping each other to stay brave.

Rainbow Tinseltail (called Bo) has never actually seen a dragon, but when things start going missing from Sparklegrove School for Unicorns all clues seem to point to a dragon pup called Scorch--but when Scorch does not return to the dragon caves, Bo and her friends become worried that he has gotten lost in the forest and they set out to find their new friend.