Zeta’s falling ill, and time’s running out to get her home. JJ’s baby sister might be the key to help the kids and pups reunite Zeta with her family.

Zeta’s falling ill, and time’s running out to get her home. JJ’s baby sister might be the key to help the kids and pups reunite Zeta with her family.

Rocco goes through a slimy transformation after getting too close to Zeta. The kids and pup squad devise a clever plan to sneak into the observatory.

Rocco goes through a slimy transformation after getting too close to Zeta. The kids and pup squad devise a clever plan to sneak into the observatory.

JJ and pals decode messages in the sound waves and learn about the observatory’s secrets. With Rocco on their tail, the pups suit up in slick outfits.

JJ and pals decode messages in the sound waves and learn about the observatory’s secrets. With Rocco on their tail, the pups suit up in slick outfits.

Emma, JJ and Tori help Andre look through his grandpa’s notes to locate the pack. The pups evade scheming security chief Rocco and crew on the farm.

Emma, JJ and Tori help Andre look through his grandpa’s notes to locate the pack. The pups evade scheming security chief Rocco and crew on the farm.

The pack follows Shepherd to the farm, where new animal mentors help refine their special powers in a series of tricky training challenges.

The pack follows Shepherd to the farm, where new animal mentors help refine their special powers in a series of tricky training challenges.

The pups make the front page with their heroics during the anniversary of the town’s infamous UFO sighting. A mysterious dog keeps watch from afar.

The pups make the front page with their heroics during the anniversary of the town’s infamous UFO sighting. A mysterious dog keeps watch from afar.

Champ leads the pack back to the observatory after sensing trouble for Zeta — but not before they test their skills while saving a pet store on fire.

Champ leads the pack back to the observatory after sensing trouble for Zeta — but not before they test their skills while saving a pet store on fire.

While the pups try to reunite, kid pals Andre, Emma, JJ and Tori spot hidden tracking devices and search for the source of their shaggy friends' powers.

While the pups try to reunite, kid pals Andre, Emma, JJ and Tori spot hidden tracking devices and search for the source of their shaggy friends' powers.