A visit to a dude ranch turns into a stampede/cattle drive through town and the cows become acrobats at a water park. Dr. Doofenshmirtz starts an aluminum siding business. --- Phineas and Ferb use a snow-cone machine to create S'Winter, a unique and logic-defying amalgam of Winter and Summer. Meanwhile, Candace follows Jeremy around after noticing him hanging out with what looks like a girl. Elsewhere, Dr. Doofenshmirtz plans to melt all the chocolate in the Tri-State Area with his Melt-inator 65000.