When seven-year-old Tim Templeton's new baby brother strides in the front door wearing a suit and toting a briefcase, it is clear who is in charge and will be receiving all the attention of their parents.

A young boy works with his precocious infant brother to stop the plans of a dog company executive.

Now adults, Theodore Templeton and his estranged brother take a magical formula that transforms them into babies for 48 hours. Together, they must now go under cover to prevent an evil genius from turning fellow toddlers intro monstrous brats.

Now adults, Theodore Templeton and his estranged brother take a magical formula that transforms them into babies for 48 hours. Together, they must now go under cover to prevent an evil genius from turning fellow toddlers intro monstrous brats.

The Boss Baby brings his big brother Tim to the office to teach him the art of business in this animated series sprung from the hit film.