Ep 7. The Haunted Lighthouse

Chased from their planet by a space storm, the Robinsons take an alien boy named J-5 with them. They encounter a ship that serves as a kind of space lighthouse. The Robinsons are ecstatic with hope that they can obtain fuel and charts. But Colonel Fogey may not be who he appears to be, and J-5 may be more than who he appears to be. And then there's J-5's mysterious pet, the Zaybo, which is and isn't there...