Kendra the Kangaroo gets blamed when her team loses a big ice hockey game. She is afraid to tell her friends about her asthma which impacts her ability to play at times. In Out of Breath, as Kendra continues to keep her "big secret" to herself, she begins to realize that her classmates might be more understanding then she once thought.

— Simon Traub-Epstein, International Library of Young Authors

From the publisher: “Kendra the Kangaroo is getting ready for her hockey team’s big game against their rival. The only problem? Her team doesn’t think that kangaroos belong in hockey. And even worse, Kendra is afraid they’ll kick her off the team if they find out that she has asthma. So she keeps a big secret, and tries to prove that she belongs on the ice. Can her friend Rahim the Rabbit convince her to be herself and tell the truth before she puts herself in danger?”