Ep. 1
"Freaky Spy Day"
"Dog Tired"
Ep. 2
"Pup Daddy"
"Candy Cane-ine"
Ep. 3
"Bark to the Future"
"Lights, Camera, Quacktion"
Ep. 4: "Happy Howl-O-Ween"
Ep. 5
"Bark to Nature"
"Mutts and Bolts"
Ep. 6
"Dog House"
"Time Waits for No Mutt"
Ep. 7
"Mud with Power"
"Legal Beagle"
Ep. 8
"Hush Puppy"
"Quacky Birthday"
Ep. 9
"Sheep Dog"
"Mom's Away"
Ep. 10
"Love Bird"
"Bluff Puppy"
Ep. 11
"Rat Trap"
"Agent of the Year"
Ep. 12
"Barking Tall"
"Bad Eggs"
Ep. 13
"Carbon Copies"
"TUFF Cookies"
Ep. 14
"Subliminal Criminal"
"Acting T.U.F.F."
Ep. 15
"Close Encounters of the Doomed Kind"
"Golden Retriever"
Sound Ideas, HUMAN, WHISTLE - CALLING WHISTLE 01
Ep. 16: "'Til Doom Do Us Part"
Ep. 17
"Crime Takes a Holiday"
"Flower Power"
Ep. 18
"The Spelling Bee"
"House Broken"
Ep. 19
"T.U.F.F. Choices"
"Sob Story"
Ep. 20
"T.U.F.F. Sell"
"Tattle Tale"
Ep. 21
"True Spies"
"Bagel and the Beast"
Ep. 22
"Dancin' Machine"
"The Good, The Bad and The Quacky"
Ep. 23
"Pup Goes The Weasel"
"Puppy Pause"
Ep. 24
"Match Me If You Can"
"Organized Crime"
Ep. 25
"A Tale of Two Kitties"
"Pup in the Air"