It's the summer solstice, so Phineas, Ferb, and their friends decide to travel around the world in one day in an effort to create the "biggest, longest, funnest summer day of all time". But not everyone believes they can actually achieve what they have set out to do, especially Buford. Candace tags along because Jeremy is on a trip to Paris, and she fears that there he may meet other girls. Also, Isabella finds her affections for Phineas sorely tested when his steadfast focus on achieving his goal puts pressure on her. Meanwhile, Dr. Doofenshmirtz takes a father trip to Tokyo, Japan with Vanessa, but sets out with Perry and Major Monogram to find her when she joins Phineas, Ferb and the others.

Tasmania lies on the Australian continent, but is a world apart. It is home to an extraordinary cast of black devils and white wallabies. Trees here tower to one hundred metres and green lights dance in the southern sky. As the last landfall heading south before Antarctica, Tasmania's isolation, cooler climate and distinct seasons influence everything.

In a time of hardship, Hobart resident Peter Walsh turns to the secretive platypus for solace, only to discover it is the platypus that need his help to survive in a habitat under threat.

Pete Walsh has been working on a new film project since the release of the popular ABC documentary, "Platypus Guardian" which chronicled his incredible connection with the platypuses in the Hobart Rivulet, and his tireless work to protect them. His new short film called “Becoming Platypus” follows two females, and tells the captivating story of their ecology, behaviour, and the challenges they face in the waterways through footage captured by Pete during countless hours of observation.

The history of Platypus Duck, the oldest surviving mammal (And a mixed-up one at that...), and a quest of one such Platypus Duck and his kids to rescue his wife after she gets swept away in a flood to Sydney.