The Incredible Detectives is a 1979 animated television special produced by Ruby-Spears Productions and based on the 1972 children's book of the same name by Don and Joan Caufield.
[2] A trio of pets – Madame Cheng, a slightly vain Siamese cat; Hennessy, a gabby black crow; and Reggie, a sophisticated English bulldog – decide to join forces as "The Incredible Detectives".
One day, Davey Morrison – the three pets' master and the son of a government scientist – is kidnapped by a group of underground adversaries.
His parents receive a ransom note demanding secret missile plans in exchange for Davey.
Overhearing the conversation between the Morrisons and the Detective of how Davey disappeared and what the kidnappers want, the family pets swing into action and set out on their own to investigate.