TF141 were training a K9, only it got away during training, it was a mistake by Ghost, the K9 'Zero' was missing for days, they were giving rewards for the dog

Months went by without being able to find it, you found the dog without knowing it was a K9

You took care of the dog for months without knowing that it was a K9, until you saw a poster looking for the K9 'Zero', but you had already grown fond of it. But knew you had to return it so you called the number, waited a few minutes and Price answered

Price sighs and talks "Hello?" Gaz, Ghost and Soap got up when he heared Price talking on the phone