Wander and Sylvia are trying to escape from Lord Hater's minions and get off the planet but Sylvia's plans can't overcome Wander's need to help others.

Lord Hater sets out to control and win everything in the universe, including conquering The Binglebops and their planet, but his plans are soon diverted when he finds himself accepting Wander's series of challenges to prove once and for all that he truly is the greatest in the entire galaxy.

When Wander and Sylvia board an abandoned spaceship, they encounter a horrifying alien monster that is set on eating them, who Wander names, Captain Tim. While Sylvia sees the wild beast as a threat, Wander takes a liking to the ferocious little monster and tries to train it to be his pet.

Fed up with Wander's constant botherings, Lord Hater sends Peepers to trick Wander into entering the ship so he can trap him and throw him in the ship's prison. But when Wander starts having a lot of fun, it makes the task extremely difficult for Peepers to succeed.

While visiting Baaaaa-halla, Wander and Sylvia encounter a mean and greedy troll who's been trying to steal the food for the big feast Prince Cashmere and his goat army are holding. Sylvia is determined to help the goats fight the creature, but Wander doesn't help the right way and sits out.

When Wander and Sylvia have to deliver a box to "Glen", Wander has to resist opening the box to find out what's inside even if it drives him mad.

Due to Commander Peepers' inability to capture Wander and Sylvia, Lord Hater hires three bounty hunters to capture them. This doesn't go well with Commander Peepers who sets out to thwart the bounty hunters and to apprehend Wander and Sylvia for his own glory.

With the help of Sir Brad Starlight, Wander sets out to fulfill his fairytale dreams of rescuing a princess.

Competing in a galactic race, Wander finds out why Sylvia is called "The Timebomb" by some and works to calm her down.

Sylvia wakes up imprisoned on Lord Hater's ship with a sleeping Wander and must fight to escape.

Lord Hater and Commander Peepers brainstorm plans to capture Wander and Sylvia.

Wander tries to outdo an elder tourist who has seen more of the universe than he has.

When Wander and Sylvia enter a white void where anything is possible through imagination, Sylvia worries Wander may never want to leave.

Wander and Sylvia try to return a giant lost baby to its parents, which is complicated by their different parenting methods.

Lord Hater gets trapped on his own prison planet and must play the role of Wander's best buddy to survive.

Wander guides a family of alien birds through the perils of an active volcano.

Wander goes out of his way to help a cute little kitten, Little Bits, only to find that she is secretly a bounty hunter luring him into a trap.

When Sylvia's old partner Rider (voiced by Will Arnett) shows up, Wander wonders if the roguish Rider makes a better teammate for Sylvia than he does.

Wander is handing out gifts to every new friend he’s made and sneaks onto Lord Hater’s ship to give him and the Watchdogs gifts.

Wander and Sylvia's world is turned upside down with the arrival of a new villain that threatens Lord Hater's status as the Greatest in the Galaxy.

Lord Hater finally captures Wander and Sylvia.

Wander and Hater each struggle in their own way when making breakfast.

When Wander is split into multiple parts of his personality, Sylvia must decide if there are parts of her pal she can do without.

 Lord Hater fires Commander Peepers, who is shocked to find how well Hater does without him.

In order to work his way to the top of the Villain Leaderboard, Lord Hater must try to ignore Wander’s game of interplanetary tag.

Sylvia discovers Wander’s new obsession with funny cat videos is part of a more fiendish viral plot.

Wander discovers Dominator is a girl and tries to set her up with Hater.

Peepers devises a plan to stop Lord Dominator, but all Hater wants to do is impress her with his sweet new vehicle.

Wander convinces a down-on-his-luck villain to spend a day looking on the bright side of things instead of collecting the souls of others.

Lord Hater steals Wander's hat to impress Lord Dominator.

Commander Peepers and Sylvia work together to stop Hater and Wander from singing the same song over and over again to get Dominator's attention.

Lord Hater releases a propaganda cartoon on how awesome he is in an attempt to get Lord Dominator's attention.

Dominator sends out one of her bots to get Volcanium X for her, but it get damaged and Wander helps it out in finding the stuff.

In this special half-hour musical episode, Lord Hater enlists Wander's help to finally ask Dominator on a date.

While rescuing some kids from Lord Dominator, Wander and Sylvia hear tales of their heroics as the kids know them.

Wander fights a massive case of the giggles while trying to impress a race of beings with unusual faces.

When a mysterious new rebel begins fighting Dominator's forces, Sylvia becomes jealous.

Wander is too scared to think straight as he and Sylvia journey inside a creepy forest to find an ancient power to use against Dominator.

After Wander comes down with a cold, he depends on Sylvia to take on his many duties helping others.

Lord Hater, Peepers, Wander and Sylvia fight over the Robomechabotatron, the universe's great robot protector, to take down Domnitaor.

Wander and Sylvia lead a band of rebels in a final stand against Dominator while Lord Hater rushes to conquer a planet.