Bat Hound's Bad Luck is the twenty third episode.
As Kevin and his family take off for dinner and Krypto sees them off happily, he finds his opportunity to finally be alone without any duties. He indulges in doing his usual activities, like rolling around in the front lawn's grass, but is disrupted when met by Bat Hound who walks into the yard frightened. Krypto greets him, but is confused as Bat Hound walks in all slumped. Bat Hound explains how he stopped Isis, Catwoman's cat in a museum, but ended up exposing himself to bad luck. He explains how he chased Isis all week, yet ran in to more bad luck when he was shot by water from a broken pipe, swinging in to catch her but instead being bundled in a flag. Worried by his bad luck, he asks Krypto to help in pursuing Isis and Krypto obliges. Krypto soon discovers it won't be so easy when Bat Hound launches a gas pellet at Isis, it reflects off her and crashes in to him. Krypto goes to tackle her, but he's immediately reflected and falls into the trash, and is then caught by a hook which crashes into a boat nearly sinking it. Krypto and Bat Hound decide to re-group and look up Isis' diamonds on the internet and Bat Hound discovers Isis is wearing an ancient Egyptian jem that cause bad luck to whomever is near her and they need the second jem to reflect the bad luck once and for all.
Krypto carefully attempts to capture her at the museum where she's attempting to steal the second diamond, but fails when he falls through a floor. Isis is distracted by this and Bat Hound, with the other diamond, reflects his bad luck off to her and finally captures her.
- Villain(s): Isis
- This is the first time Isis has appeared in the Krypto series. This is also the first Krypto cartoon to make use of magic, which is, aside from Kryptonite, traditionally Superman's primary weakness.