When Tim is coerced to go with Jack on a secret mission Amy is left back at Heartland with Janice to get a young racehorse ready for his maiden run. On the road, Jack forces Tim to talk to Miranda and learn why she doesn't want Shane to have anything to do with Tim. Meanwhile, a cute but chaotic gang of furry four-legged troublemakers foils Ty's big plans for a special dinner date with Amy.