On a diplomatic trip to London, the Ambassador of Egypt's cat becomes the victim of an unexplained theft during his visit to Buckingham Palace.
Salty, one of the Royal Guard cats, is paralysed by a mysterious knight with supernatural powers.
Flash, the greyhound race champion, disappears from his ultra-secure pen in unfathomable circumstances the night before an important race.
Champollion, the parrot of the famous archeologist, Sir Arthur Bones, calls upon Clever when his master is abducted by a humanoid robot after localising the famous Templars' treasure.
Snowball and Charcoal, Clever's neighbours at the pet shop, are kidnapped during the night. Clever receives a tablet that shows them as prisoners. She recognises their place of detention: the room of the Templars' treasure.
A cat named Jellybean comes to consult Clever: her master, a great violinist, lost his mind and broke his violin in a tantrum, as if he'd suddenly become a baby.
A beauty contest poodle is attacked in her home one night by a tentacular creature.
A long-clawed feline with a spotted coat and sculpted mask bursts into the Queen's bedroom in the middle of the night and whisks the monarch away as if by magic.
Just as Agent Paxton, the Scotland Yard pigeon, is about to share an important piece of information with his boss, Detective McFlare, they are attacked by a small, elusive, mysterious adversary with Ninja combat techniques.
Detective McFlare is certain that the diamond thief who is currently terrorising London will come after the Queen's diamond next. But how can he protect the gem from an enemy described by guards' dogs as a 'shaggy-haired gnome who can teleport himself'?
Benny, the sweetest and most popular dog in the neighborhood, suddenly and radically changes personalities after seeing an enigmatic symbol engraved on a tree in the park. He snubs his friends and even bites his beloved master.
While Red the Alley Cat and his friend Tommy are having dinner in the park one night, a strange bat comes out of nowhere and bites Tommy. Red cannot believe his eyes: his friend has turned into - a vampire.
According to Alfred the pigeon, the old Buckingham Palace aviary is bewitched: a living gargoyle scares away any birds that come close. And according to Clever, Alfred might be a dreamer, but the clues on him do not lie.
In the Lexington Park, there is a hidden place behind the bridge where dogs disappear instantly, leaving no trail. When the dog of a human detective from Scotland Yard disappears, McFlare asks Clever to help him elucidate this phenomenon.
Detective McFlare and his team tolerate the outlaw "Robin of the Animals", a mysterious dog who steals humans' unsold food to distribute it to street animals from an air balloon. Until the day he sends them a message threatening the Queen.
A mysterious hacker named Ingenius takes the Law into his own hands and sets out to attack the elite pet population of London by remotely controlling connected electronic gadgets.
McFlare seeks Clever to help him flush out the famous criminal who escaped from Greenside Prison: the dangerous Nibbler, a rat with teeth as tough as nails. Only Clever isn't there. Bro has no idea where she is: she's simply disappeared.
During an unusual blackout in the Lexington district of London, all lights and electronic gadgets switch off. Clever investigates the scene of a jewelry store robbery that is every bit as strange.
One night, Alfred the pigeon witnesses the abduction of a hamster by a creature with an extraordinary ability to move rapidly and agilely. As Alfred attempts to follow it, the creature puts him to sleep in mid-flight with a simple glance.
Athena calls on Clever and Bro when she and her scientist master are attacked by the phantom of her master's partner who died in an accident twenty years ago and who now threatens to seek vengeance.
The Queen in person comes to see Clever for a confidential mission. The previous night, her secret agent "C," whose existence must remain unknown to all, tried to join her to warn her of a great danger but then disappeared mysteriously.
Clever tells Bro and McFlare that she has gathered enough clues to know where the Evil Knight, the most wanted criminal in the animal kingdom, plans to hold the upcoming meeting of his secret organization, The Cause.
