Season 4

Cyril Sneer's childhood friend Woodchuck Berry shows up in the Evergreen forest. When Woodchuck is hired to play at Schaeffer's cafe, Cyril is given another chance to play with his friend onstage.

When Troy Malone comes to visit Melissa, Ralph tries to win back Melissa's affection by entering a flight contest.

To get a contract signed, Cyril Sneer agrees to look after Mr. Knox's nephew. This results in Cedric becoming the nephew's new bullying target.

Lady Baden-Baden decides to work at the Blue Spruce Cafe, much to Mr. Knox's dismay.

Bert and Cedric go exploring on an island to find a fallen meteorite, but they don't tell anyone where they're going and get stranded. Soon everyone else is desperately scouring the forest, and consulting Lady Baden-Baden's astrology, to find them.

Bert falls in love with Lisa, Bentley's older sister, when she comes to visit the Evergreen Forest. After much procrastination, he gets a date with her. Meanwhile, Cyril Sneer must choose to attend a camp reunion with Cedric or meet up with a famous billionaire.

When searching the family archives for one of Lady Baden-Baden's literary projects, Bert and Cedric find papers for the adoption of a Sneer and believe Cedric has been adopted.

When a famous magician shows up in the Evergreen forest, Bert is bent on becoming his apprentice. Meanwhile, Cyril Sneer tries to sell Knox his new $750,000 secure vault.

When Bentley comes for his annual visit to the forest, Bert and Cedric take him to see the old Evergreen Schoolhouse. There, they meet their old teacher, Ms. Primrose, and learn the school is too small for government regulations, and must be closed.

Prof. Smedley-Smythe holds a science contest for young people, who are to prepare any kind of scientific projects and present them to a jury. Bert's digging for dinosaur fossils, while Cedric and his father build a flight device resembling a pedal-driven helicopter. After not too long, Bert finds a promising tar pit and prepares to examine it more closely. But the pigs, thinking they'd improve Cedric's chances in the contest by sabotaging Bert's project, sink a heap of fresh bones in the pit, and thus cause confusion as usual.

Bert and Cedric have gone skate-crazy. Cyril and Mr. Knox are trying to settle in the skateboard market; they have both developed their own product line and each of them equips a team for a coming race in order to prove the quality of his boards. There seems to be no place in the forest for two skateboard brands - they agree that the looser has to retreat from this market. At the pigs' place... Lloyd and Pink are huge comic book fans and members of a ""Mudman"" fan club, and feel quite elitary, scorning Floyd, who can't afford these books. In order to gain their respect, he begins to steal them from Willow's, and suffers from his bad conscience. In the end, he's going to be discovered and punished. During the race, Cyril's and Knox's race teams behave rather unfairly, trying to throw their opponent out of the race, but don't care for Bert and Cedric, which enables them to win the race (using neither Cyril's boards nor Knox's).

The Sneer Theatre is about to be re-opened; just in time for Cedric, who has written a play (""The secret of the cursed treasure""). Lady Baden-Baden appears to the casting and gets crazy for the main role. In order to make sure she gets the role, Knoxie puts Cyril under pressure, who in turn tries to convince Cedric to modify the play in favour of Lady B.B. Cedric agrees to 'improve' the script, and from this moment, odd things start to happen - Cyril has a series of utterly improbable accidents each time he tries to take influence in Cedric's writing. When they hear the phantom's threatening voice and realise there's someone behind the events, Bert and the pigs unpack their ghostbusting equipment (they've got the will, they've got the technology!) After a chase and fright sequence, the phantom is revealed to be another author formerly employed and exploited by Cyril, who wanted to take revenge, while saving Cedric from suffering the same fate.

The pigs, mightily discontented with their living and working conditions, get in contact with scandal reporter Ms. Barbara LaFrame: a TV talker specialized in interviewing and tormenting rich people who keep their personnel as their slaves... The pigs discredit their boss and she promises to pay him a surprise visit with a camera team that would ruin his reputation. But they soon regret this idea when they learn that her last victim, Milton Midas, utterly destroyed and ruined by her, had to fire all of his staff. Fearing for their jobs, they now try to get rid of her again, describing her boss as a wonderful, friendly father, rather than an employer. But she's not so easily convinced and tries to get her interview. Cyril flees from her, ending up on a roof, from where he crashes through a window and lands right in a ""bachelors auction"", where the reporter has to ""buy"" him for a large amount.