Grizz is a Basset hound puppy, in training to be a hearing assistance dog, but paired with the experienced and pompous Luca, he needs to use patience to demonstrate his abilities.
Cha Cha the Vizsla wanted to be a bomb-sniffing dog like her parents, but she can not resist the tempation to retrieve the fake bombs when she finds them, so she needs a new job, one that will fit her skills.