Star must dig deep and challenge archnemesis Ludo in an effort to save her family and kingdom.

Despite dire warnings, Ludo tries to write a new chapter in the Book of Spells.

King River struggles to keep the kingdom running without Queen Moon's help.

Buffrog helps Star escape from Moon's ever-protective watch.

With Ludo in control of the kingdom, Marco must decide his next move.

King Ludo's reign reaches as a tipping point as Star returns to the castle. Star must summon her strength to save her family and the kingdom.

Star secretly keeps Marco's hoodie as a reminder of their friendship.

Star has recurring visions of Glossaryck and believes he's haunting her.

Tom snubs Star at the Silver Bell Ball.

Star meets the ancient Queen Eclipsa.

Star and Tom's relationship is put to the test when Tom decides to get rid of his demons.

Marco decides to put a full effort into living life in the present on Earth.

Knight of the wash, Sir Lavabo, gets a familiar squire.

Star prepares for the Midnight Warrior Blowout Sale at Quest Buy.

A surprise visitor pressures Marco to reveal Turdina's true identity.

Star goes out into the field to understand why Mewmans treat Monsters unfairly.

Star discovers she travels through multiple dimensions in her dreams.

Kelly breaks up with her boyfriend and Marco questions his friendship with Star Butterfly.

Star urges the royal youth of Mewni to sign a petition calling for the equal treatment of monsters.

Star becomes thrilled when Pony Head invites her to dinner with her sisters.

Star learns that Marco and Hekapoo have been dealing with rogue interdimensional portals.

Star's sleep-portaling becomes a danger and she decides to put a stop to it.

All the youth of Mewni gather at the ancient Monster Temple to celebrate a new era of monsters and Mewmans living together in peace -- until guests start disappearing.

Star, Marco and the rest of Mewni celebrate a special snowy holiday, "Stump Day."

Spider with a Top Hat invites one of Eclipsa’s dark spells to the office holiday party.

King River interrupts Star's eager investigation into Eclipsa's past and demands her help on a dangerous hunt.

Moon enlists Eclipsa herself to access Mewni's most guarded records.

Moon and the Magical High Commission put Eclipsa on trial for her evil past with Star as a key witness.

Dennis goes on a dangerous journey to find Ludo living in another dimension.

Buffrog leaves Mewni in search for a better life, and Star goes to look for him.

Marco returns to Echo Creek to discover that his mom is pregnant.

Ponyhead returns to St. O’s and finds that the curriculum got tougher.

A magical photo booth at a wedding goes on the fritz and captures Star and Marco inside.

Ponyhead shuts herself away to watch the finale of her favorite Korean Drama.

Eclipsa and Moon bring Princess Meteora home peacefully after the massive destruction she's caused.

Star becomes acting Queen and plans for Marco and his warriors to delay Meteora from reaching Castle Butterfly long enough for Star to find Moon and destroy the monster princess.

Star must find the courage to face Meteora alone and make a decision that will change the kingdom forever.