Paco is trying to find out what DNA is. Not everyone has the complete answer until somebody calls the wrong number repeatedly. Robin is fortunate to talk with one of the biologists who discovered the basics of DNA.Jackie learns about the breeding of miniature horses. Miguel finds a botanist observing the wildflowers and insects populating a vacant New York City lot.FILM INSERT: The jacquard loom.ANIMATION: Life evolving through DNA.THE BLOODHOUND GANG: ""The Case of The Locked Safe,"" a one-shot surprise that trains the gang to work under pressure. Can they find the new combination to the lock?