Avery Jennings and Tyler James are step-siblings who are complete opposites. The family faces an even bigger adjustment when their new dog, Stan, can talk and also has a blog, unbeknownst to the family. Stan uses his blog to discuss the happenings in the Jennings-James household. Avery and Tyler later learn of Stan's talking ability and agree to keep it a secret from their parents.
Ellen has decided to get a pet of her own, a talking parrot, but the rest of the family is not very comfortable with it.
After overhearing Avery talk about Stan's secret, Karl Fink (the family's neighbor) starts spying on Stan and the rest of the family to find out his secret. To make sure he doesn't find out, Avery decides to enter Tyler into a math competition against Karl after it is revealed Tyler is a math genius. The plan to divert Karl from Stan's actual secret works, and he eventually believes that there was no secret and that Avery tried to get back at him for a prank he pulled earlier. Meanwhile, Bennett tries to get Chloe to stop wearing her magician's outfit to school.
Avery, Tyler, & Chloe discover that Stan isn't talking, so they must figure out why without their parents discovering the secret.
When Stan is in charge of watching Chloe, she goes missing!
The family trains Stan to be a guard dog.
When Avery realizes that her family thinks that she is not fun, she decides to prove them wrong by making a movie with her family called "Freaky Fido".