Plot

Big Lez and his friends band together to kill King Laranox (and the Choomahs) in this epic hour-long finale.

Leslie "Lez" Mackerel, following his escape from his cordoned-off home town of Brown Town, Queensland, is flying in a stolen UFO to northern Queensland, where he intends to kill his father, King Laranox. En route, his UFO is attacked by a Choomah. Frustrated by the Choomahs' constant attempts on his life, he kills the Choomah with a forearm-mounted cannon, destroying his UFO in the process.

Surviving the crash, Lez traverses the wilderness, setting up camp near a railway line. He makes his way to a saloon in the Australian outback, where he finishes telling his story to the bar's only other patron, Taipan Pete. Demanding Pete explain himself, Pete reveals himself and the entire desert region to be a hallucination. It is revealed that Lez has been talking to a tree in the wilderness the entire time. After his forearm cannon fires two shots in the air, a train approaches him.

On board the train, Lez wakes up fully clothed alongside Sassy, Donny, Scruffy, Wayno and Mike Nolan. After Lez has told his story, Sassy reveals that Lez's hallucinations arose from consuming Datura flowers. Sassy fills Lez in on his adventures following the cordon on Brown Town, which included the destruction of Choomah-inhabited islands.

At the terminus in northern Queensland, Sassy bags the train driver, Scotty, to join him on the adventure, with Scotty promptly refusing. Lez then discovers that his forearm cannon has broken down. A nuclear missile is brought along in case of an extreme emergency, with Scruffy and Wayno standing by.

On board a fishing boat, the crew meet up with Ellis 'Warning Guy' Warnington, who shows Lez footage of the interrogation of King Laranox's assistant, Hansel, who commits suicide to avoid revealing classified information. Speeding towards the island, Lez launches himself onto the nearest island, parachuting to the ground below. Sassy, Donny and Mike surf to the sure and plant a GPS tracker for the nuke.

Lez scours the island for his father, killing a pack of Choomahs on the way. After Sassy and Donny enter a drug-induced hallucination, Lez locates his kidnapped son, Quinton, before being abducted by a UFO. On board, Lez is tormented by his father, who destroys his stolen 'Glen Doll' figures. King Laranox's assistant, Glen, on whom the figures were based, appears, having been presumed dead over 65 years earlier.

Glen turns against Laranox as well as Lez, causing the island (in reality a giant Choomah) to ascend into the stratosphere and dumping the others onto the 'island'. Lez, severely injured, enters another hallucination, with Pete as its subject. Pete convinces Lez to sacrifice himself to avoid becoming king and causing misery for others. Pete disappears, leaving Lez with a vague answer as to his true identity.

After Lez frees Quinton, he stays behind on Pete's advice and launches the nuke. Gaining superhuman strength, Lez and Laranox brutally fight to the death with gory results. As Laranox lies dying, he picks up a revolver and shoots Lez in the same manner Lez had killed his brother, Norton Sparkles. Mike and Quinton take Lez's parachute and bail out as the nuke climbs.

Lez sits up on a rock, severely injured as the island climbs towards space. Just before the nuke arrives, he lights a joint he rolled several days previously and has one final flashback to the best moments of his earthly life. The nuke explodes, killing Lez.

Several hundred thousand feet below, Mike and Quinton splash down in the Pacific Ocean. Mike reassures Quinton that Lez did not die in vain. Pizza, a New Zealand sasquatch, arrives to rescue the two humans.

Sassy and Donny, still stuck in their hallucinations, switch dimensions. Sassy enters the real world and hitches a ride to the real-life version of Lez's house. Upon arrival, he finds a note with a joint attached. Smoking it, he loses consciousness and ends up in his own dimension. He wakes up to find Donny face down in the sea and promptly rescues him.

The two sasquatches find Mike, who reveals that they've been away for 13 months and that Lez is dead. Eventually, Clarence, after a long absence, turns up. A Choomah emerges from the sea and reveals that his race have evolved to be human-like. He thanks Clarence for creating them before they leave Earth to find a new planet on which to settle.

Sassy then reads Lez's farewell letter, in which he left Quinton both his and Norton's houses. The crew (including the spirit of Lez) go surfing when Owlanox ("Owly") arrives and describes his past year. Quinton joins the others as the camera pans up into the sky and a caption reads 'FIN'.

In a post-credits sequence, Charles Charlington, the narrator of the series, closes a book representing the series's storyline and praises its quotability. He then unzips himself to reveal that the narrator was, in fact, Sassy in a human suit. Sassy informs the viewer that although the series is over, there is an entire library of stories to tell. Finally, he smokes a bong