After her mother catches her in an untruth, Libby Sullivan promises never to lie again, but soon she must learn that it is not always kind to blurt out the whole truth either.
Twelve-year-old Aru stretches the truth to fit in at her private school, but when she is dared to prove an ancient lamp is cursed, she inadvertently frees an ancient demon.
A young donkey named Larry lies all the time, until he learns that lying makes it hard to find friends. When he meets another liar, they agree to stop lying and become friends.
When his teammate Stu is injured during practice, Manny promises to keep quiet so he can play, but then Stu starts acting funny, and Manny struggles with whether to keep his silence or break his promise and let his team down.