In this episode, we discuss the financial implications of owning a dog, a new study that has tackled the question of whether dogs can recognise their owners by their scent, the viability or otherwise of leash and collar systems, and we celebrate another truly remarkable Wagtastic Woof.

How much does it cost to care for a dog through its lifetime? In The Twilight Bark, we take a look at the assorted costs that come with dog ownership. Will you be clutching your wallet and howling in misery, or will the findings be a pleasant surprise?

In the Doggler Effect, we examine precisely how smelly you need to be for your dog to recognise you! An exciting new study from one of our dog nerd's favourite experts tries to make "scents" of the world (see what we did there?). Do dogs really see their surroundings in Smell-O-Vision?

This time in Gadgets, Gizmos and Gastronomy, we examine the world of the much-heralded multi-functional leash and collar systems. Our presenter and dog nerd go head-to-head over the necessity of yet another gadget in modern life.  Do we really need all singing and dancing dog accessories when a simple leash would suffice?

And Episode 5's Wagtastic Woof is a tearjerker. Tune in to find out why.