The "top-secret Sven-Cave" is a parody of the traditional Batcave of DC Comics hero Batman. The Sven-Cave features a Sven-mobile with the mustached skull of Zallman T. Tombstone mounted on the front (a retro vehicle styled after the Batmobile from the TV show Batman (1966)), three encased displays of past and present Svengoolie/Son of Svengoolie costumes (like the Batcave's gallery of Batman/Robin uniforms), and a giant wooden nickel (in place of Batman's iconic giant penny).
The first new broadcast of Season 26 since the start of the coronavirus pandemic of spring 2020 (after about three months of rerun and repackaged programming). In keeping with health and safety precautions, this new episode was recorded from Sven's home (the "top-secret Sven-Cave"), rather than his usual studio.