Kitty becomes suspicious of Dudley's new girlfriend, Daisy, after Snaptrap keeps getting inside information.
Snaptrap poses as a safety instructor and scares Dudley out of being a secret agent.
Kitty's evil twin sister, Katty Katswell, breaks out of prison and swaps places with Kitty at TUFF!/
Birdbrain uses an anti-gravity device to fly. However, he cranks the device up so high that soon all of Petropolis is floating
FLOPP kidnaps the most valuable TUFF agent: the secretary, Tammy. Dudley must rescue her before TUFF falls apart!
When an efficiency test shows that Dudley and Kitty aren't well suited partners, thery are reassigned.
The Weasel, a super diabolical criminal, has broken out of prison and is after Dudley and Snaptrap.
Dudley finds gloves that stop time, Snaptrap steals them, and TUFF must get them back before time stops forever.
Dudley teams up with the Chameleon for Petropolis' dancing competition.
Quacky and the Sharing Moose stage a fake reality show and invite TUFF to compete against DOOM, live on the show.
Kitty and Dudley accidentally drink Keswick's truth syrup and can't stop telling the truth!
Petropolis is convinced that Bigfoot is a burglar, so Dudley sets out to clear his childhood hero's name.
Snaptrap wins the lottery, and buys TUFF in an evil plan to fire all the agents.
FLOPP is tired of Dudley getting in the way of their evil plans so they decide to tattle on Dudley and get him sent to detention.
Snaptrap realizes his inability to make a decision stands in his way when it comes to getting away with crimes, so he buys an Indecision Ray and uses it on TUFF.
Sit. Stay. And bite into over 5 hours of T.U.F.F. Puppy! Join Dudley and Kitty as they face off against baddies like Snaptrap, The Weasel, Caped Cod, and Birdbrain in adventures that take them from the rainforest to Scotland to Hawaii and beyond!
The Wannabee snatches all the kids at the spelling bee and challenges Dudley to a spelling competition.
While TUFF is away traveling, Snaptrap breaks into Keswick's house to steal his latest invention, the head shrinker.
The Chameleon disguises himself as the Easter Bunny and goes on a crime spree in Petropolis. Birdbrain finds a rare flower that makes him indestructible. Dudley and Kitty go to the rainforest to stop him.
DOOM teams up with the Chameleon to steal wedding presents, causing all the couples to cancel their weddings. The only way to catch the bad guys is for Dudley and Kitty to fake being in love and stage a wedding.
When Dudley and Keswick manage to make contact with alien life forms, Snaptrap commandeers the alien ship and uses its hi tech weapons to wreak havoc on Petropolis.
Dudley takes Crime-etapp, a medicine scientifically designed to help understand the criminal mind.
Dudley's Movie Star hero, Woodchuck Norris, comes to TUFF to do research for his next big, blockbuster spy movie.
Dudley leaves the door open to the simulation station and his imaginations become real and escape.
Dudley is picked to be the new "spokesdog" for Quacky's new line of cookies, "Animal Quackers".
Birdbrain steals TUFF's latest invention: the Grow Faster Blaster and becomes a giant.
Dudley and Kitty go undercover at the hospital to find out who is stealing all the eggs.
Snaptrap heads back to summer camp, where he was outcast as a young diabolical rat.
Dudley Puppy explodes into Petropolis crime kingpin Verminious Snaptrap's secret lair.
The Hunky Monkeys perform for the TUFF gang!
Agent Dudley accidentally shoots all the TUFF agents with the young gun, turning them into teenagers!
The Chief gets poisoned by Dudley's new flea collar and a replacement must be found!
When Agent Tuff Puppy is continually late to work, he has an alarming solution!
Dudley takes the laser boomerang for a test drive. Not a good idea...
TUFF agent Dudley Puppy fights crime wearing no pants, but he might need some to defeat the Caped Cod!
When Dudley finds out Chameleon is going to impersonate the Mayor, he makes a bad mistake and gets the Tuff team shut down!
Snaptrap and the other criminals are teaming together to get revenge on Santa. They want to steal all the toys before he can deliver them!
Snaptrap has something disgusting planned for the fair city of Petropolis.
Dudley can't help but bury things, even if they are priceless jewels from a museum!
Bird Brain puts the finishing touches on his latest evil invention.
Snaptrap's indecision to choose between cars and food gets him caught in his burglary attempt!
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