Sonny is severely injured after a fall, forcing a move to a desk job. Jerry and Lou have to leave Skippy behind. Dave and Kate try to make the 'Roo happy but Skippy runs away. The Hammonds must find a way to return to the reserve.

When a rival park opens up, the Habitat gets a new volunteer helper. But when problems start arising out of no where, suspicion falls on the new helper.

Still wary after the saboteur, Lou and Jerry want to find out more about the rival park. However, they soon find themselves in over their heads as they witnesses animal cruelty.

Watch out! Beware! A mischevious Simon wanders into the Hammonds twins' lives and sparks mischief in the house. Ingeniously using electronics, he creates mayhem with prank spiders, spins stories that the old mill is haunted and talks Jerry into sneaking out after dark to see the 'ghost'. Tables are soon turned when Lou and the girls decide to get their own back on Jerry and Simon for all their pranks. Skippy saves the day as he finds Simon trapped in the haunted house and alerts the others.

Bird Smuggling is a SERIOUS crime in Australia, and when it comes home to Habitat, it takes the combined efforts of the twins, Sonny, and Ranger Dave to prevent it. Dealing with the two criminal men, Skippy, Lou and Jerry help save the native birds, and put a spanner in the works for the criminals.