Sunita and her fellow volunteers at the Wild at Heart veterinary clinic become involved in efforts to save a bunch of feral and abandoned cats with the help of Dr. Mac.

Brenna, Maggie, and Zoe go to Florida to visit a manatee rescue center, where they learn about these endangered marine mammals.

After a hurricane hits her town and all the veterinarians are busy on other emergencies, Sunita must face her fears in order to help Lucy, a stranded diabetic cat with a broken leg.

Someone's been setting animal traps in the nature preserve behind Brenna's house. She and her older brother, Sage, are furious - not only is that illegal, it's hurting and killing defenseless animals where they should be safe. They both want to do something, but Brenna's worried that Sage may have some really extreme plans in mind. Can she rein him in?

There's a flock of parrots in Zoe's backyard! No one knows where they came from, but they aren't as big a surprise as the sight of Zoe's mother, who has just arrived from California. She wants Zoe to move back home with her - something Zoe has been waiting to hear for months. But why does leaving Ambler and Dr. Mac's place seem so much harder than she expected?

Maggie learns all about dog racing when an injured greyhound is brought to the clinic. She goes to the track with Dr. Mac and Taryn, the newest Vet Volunteer, to check on the condition of the dogs. It's risky, but it will be worth it if they can save these greyhounds!

An all-new book in acclaimed author Laurie Halse Anderson's series for younger readers!
Zoe is back in Ambler after living with her mom in Los Angeles, and she doesn't know what to feel about it. It's fun to be back with the Vet Volunteers, but Zoe misses her mom, who is filming a movie in Canada. Meanwhile, there seems to be a rash of animals being poisoned by antifreeze across the town, and Zoe fears that David's new adopted cat, Rover, might...

When the Vet Volunteers find some abandoned ducklings, they know there's no time to lose. Without a mother, the ducklings must learn to swim on their own. But where did they come from? When Brenna and the rest of the Volunteers learn that the ducklings are abandoned Easter pets, they hatch a plan to educate their community about baby animals—but they also must teach the ducklings to swim before it's too late.