THE OWL EXPRESS
Nate, the great detective, and his dog Sludge, hit the rails on their latest case. Their mission: To guard an owl named Hoot. Hoot belongs to Nate’s cousin, Olivia Sharp, and she thinks someone on the train might be out to get her feathered friend. Then Hoot disappears! 
THE TARDY TORTOISE
The sun is shining, the birds are singing, and someone is eating the flowers in Nate's garden. A green tortoise is slowly stepping across the lawn, and Nate is slowly following him. It may take all of Nate the Great's patience and sharp eyesight to find out slowly.
THE KING OF SWEDEN
Rosamond is visiting Scandinavia when she loses something. She wants Nate the Great to find it, but he’s thousands of miles away. Can Nate solve his first-ever international case. 
SAN FRANCISCO DETECTIVE
Olivia isn't around to solve her case number 22. Her client, Duncan, has lost his joke book. Nate takes the case. He and Sludge cruise around San Francisco in the limo, tracking down clues that take them over the Golden Gate Bridge and finally to a place that seems wrong but could be right. 
THE PILLOWCASE
It's two o'clock in the morning when the telephone rings and Nate learns that Rosamond's pillowcase is missing. She needs it now because her cat, Big Hex, likes to sleep on it. Outside it is damp, dark, and dreary, but a good sleuth knows that the hunt must go on. 
THE MUSICAL NOTE
Nate the Great has just received a strange musical note. The note tells Nate's friend Pip what his mother wants him to do at four o'clock. Their friend Rosamond has turned the note into a riddle. Nate checks Rosamond's garage, but doesn't find any clues. Time is running out for Nate and Sludge. It's almost four o'clock. Will Nate the Great stay stuck in the middle of this musical riddle?
THE BIG SNIFF
Nate depends on his dog, Sludge, to help him solve all of his cases. But Sludge can’t help him this time — Sludge is lost! Lost inside a big department store on a rainy day. Nate frantically searches for his best friend and trusted helper. Salespeople have spotted a wet, slippery, dog running about. Every clue leads to a dead end . . . until Nate realizes that Sludge can help him with this case! 
NATE THE GREAT AND ME
Annie's dog, Fang, is missing! That's what Nate discovers when his friends throw him a surprise Happy Detective Day party. Where is Fang? As you and Nate track down clues—Fang was learning tricks for the party; he was seen running away from two tiny poodles and following a lady wearing fluffy-bunny shoes—Nate will share his expert detective skills with you so you can sharpen your sleuthing talents.
  
GOES DOWN IN THE DUMPS
Nate’s friend Rosamond has started a fortune-telling business, but her money box is missing. Sludge and Nate visit Claude, who helped Rosamond set up her business, and Finley, who collects boxes for his rat. They can’t seem to help! It looks like the only way to clean up this case is to get down and dirty in the dumps!
STALKS STUPIDWEED
When Oliver asks Nate to find his lost weed, Nate can't say no. This isn't  just any weed. It's a Superweed that Oliver bought from Rosamond's Adopt-A-Weed sale. First Nate must figure out where to look for the  weed. Together with his trusty dog Sludge, they  search for clues in the woods, the park and even the  library! But is the biggest clue right under Nate's nose?