Heavy rains pour throughout Baryo Mahayop when Jet wakes up to an emergency call: A hideous monster roams a nearby forest, turning every cat it encounters to mindless zombies. This all due to unhygienic habits of a kitten named KenKen, whose refusal to bathe caused it's dirt and grime to mutate into a monster. Jet and the Pet Rangers clash against the monster in a bid to restore peace once again and teach the animals one valuable lesson: Keeping yourself clean.

Potpot used to be the toughest dog in town until he got hit by a speeding tricycle while trying to save a kid. After losing a leg, Potpot has since live a life of isolation. One day, Potpot's friends call on Jet and the Pet Rangers asking to help them rebuild Potpot's broken house in the hopes to bring back some joy to him once more. Things take a hard turn though after everyone discovers that Jet was the kid Potpot tried to save during his accident. Despite Potpot's attempts to push Jet away, Jet tries to figure out ways not only to fix his old broken home but to help Potpot find within his heart the gift of forgiveness and friendship.

While most pigs are busy piling up extra pounds just to outweigh each other, piglet Vicky Biik is trying to figure out how to fly instead. She believes this is the reason why she was born light and thin compared to others. With the help of Jet and the Pet Rangers, will she be able to withstand the ridicule that surrounds her and realize her dream for flying amidst a brewing whirlwind threatening every single pig's lives and belongings?

Elderly firefly Andoy proves unlucky, as he spends the entire evening trapped inside a cookie jar of a mischievous orphan kid named Ben. Ben believes a firefly's light can make wishes come true, and he needs nothing less than to see his long-deceased parents once again. Things take a bad turn though when Andoy starts to lose his tail light. Miffed, Ben flips him out of the jar then heads toward the forest with one goal in mind: Fill his jar with fireflies. Wishing no harm to his fellow fireflies, Andoy together with the guardians of wildlife, Jet and the Pet Rangers, embarks on a mission to prevent his dangerous plan and grant Ben's wish instead. With the help of the forest fireflies, they form an illusion in the likeness of Ben's parents, making the kid extremely happy and finally fulfilling his wish, even for just a moment.

A dog named Abet rings Jet and the Pet Rangers for help. He got caught in the middle of a tussle between puppy twins Lester and Larry who is fighting over a treat he gifted them. Jet and the Pet Rangers knows exactly what to do. The treat maybe the conflict, but their jealousy and selfishness are the root of the problem. In a bid to make the twins reconcile, Jet and the Pet Rangers launched "Operation: Camaraderie", an ingenious plan that uses Pinoy party games to test their skills and vigor against each other, but at the same time, unknowingly instill in them the value of cooperation, selflessness, and generosity.

One starry night, Jet wakes up to a duckling's cry for help. Bea Bibe's white feathers turned all black and greasy after some men disposed oil waste in their pond. More than anything, she fears her mother won't recognize her anymore Jet and the Pet Rangers to the rescue. Tiyang Manok surveys the sky looking for Bea Bibe's mother while Jet, Liksi, and Gigi Goldfish try a way to bring back her white feathers. As they help one another, they start to realize that motherly love goes way deeper than what the eyes can see.

There are rumors circulating in Baryo Mahayop about a black kitten named Pawpaw seeking new friends and shelter. An old belief about black cats bringing misfortune urge not only Baryo Mahayop's townspeople but also it's forest animals, to deny the poor cat's needs. Jet, on the other hand, is out to prove that the old belief is false. Together with the Pet Rangers, they devise a plan and use a trap to unveil Pawpaw's truest intentions. But before they even get to know more about Pawpaw, a great tribulation unfolds just near Baryo Mahayop's mountainous regions. Will Jet and the Pet Rangers be able to save bot only Pawpaw, but the entirety of Baryo Mahayop from the disaster threatening them?