Question: "Walnuts & Rain" is an episode featured in which season of the American animated television series created by Pendleton Ward and featuring characters Finn and Jake?
Sentence (from "Walnuts &amp; Rain"): The episode debuted on March 5, 2015 on Cartoon Network, and guest stars Chris Isaak as a bear named Seven and Matt L. Jones as King Huge.
Relevant evidence: No