S3 E1 • Le Blakk Steel

Eli tries a fusion shot on Dr. Blakk's unstoppable train but he uses the wrong slugs and shorts out his gang's slugs. The Shadow Clan confront Eli and teach him how the Enigmo slug has the ability to allow the Slugslinger to see a slug's aura. Eli, learning more about the double barrel-fusion shot, confronts Blakk's Gattler and destroys his new Slugterrian Express train.

Première diffusion : 2 juillet 2013

S3 E2 • La coupe de slugball

Kords' troll friends compete in the Slugball but when they are injured, it's up to the Shane gang to find out why the battle field is infested with high-tech traps, and come out victorious.

Première diffusion : 3 juillet 2013

S3 E3 • Le roi des lanceurs

It's up to the Shane gang to help The King duel with Dr. Blakk to save his home cavern.

Première diffusion : 5 juillet 2013

S3 E4 • La prison des zombies

Pronto and Burpy must save The Shane Gang from prison.

Première diffusion : 17 août 2013

S3 E5 • Le roi des Taupoïdes

The Shane Gang has to find a Map of Slugterra which shows every Secret Thing In Slugterra before Diablos Nacho gets it who works for Dr. Blakk.

Première diffusion : 24 août 2013

S3 E6 • Le grand maître du jeu

The Shane Gang must use every bit of skill they have when they are lured into an elaborate game by a Twisted villain calling himself the Game Master.

Première diffusion : 31 août 2013

S3 E7 • La Lumière contre les Ténèbres

Burpy is very sick and Eli has to take Burpy to the Lightwell with the help of his slugs. Will he be able to help Burpy or will Burpy actually die.

Première diffusion : 7 septembre 2013

S3 E8 • La chasse au monstre

When a mysterious creature begins draining the energy from all the slugs in a distant cavern, the residents offer a rich reward to whoever can stop it.

Première diffusion : 14 septembre 2013

S3 E9 • Un dangereux prisonnier

The Shane Gang must transport Dr. Blakk to Stalagmite 17 prison.

Première diffusion : 21 septembre 2013

S3 E10 • L'histoire de Thaddeus Blakk

While his henchmen attempt to spring him from prison, Dr. Blakk tells Eli his life story and describes his rivalry with Will Shane.

Première diffusion : 28 septembre 2013

S3 E11 • Rookie

Seen through the eyes of the slugs, the Shang Gang must liberate a cavern with the help of a new member of Eli's team a Blastipede slug named Rookie.

Première diffusion : 5 octobre 2013

S3 E12 • Mission d'infiltration

Dr.Blakk finds a way to make his ghouls stronger thanks to a special device. Hoping to find a counter-measure,the Shane Gang looks for Red Hook. Entering Quiet Lawn, they instead encounter Twist and Blakk's men. Eli enables his friends and slugs to escape-but gets captured by Twist and Diablos. While escaping from imprisonment in Blakk's base,Eli soon finds Red Hook, willingly working for Blakk by making the device. Red Hook upgrades Eli's blaster by fitting one of the devices onto it,enabling them to escape with Red Hook's newest gizmo-the accelerator.

Première diffusion : 12 octobre 2013

S3 E13 • La délivrance

The Shane Gang assault Dr. Blakk's stronghold while Pronto is given the mission to contact the Shadow Clan in order to repel Dr. Blakk and the Darkbane once and for all. When Eli, Trixe, and Kord arrive they find Blakk and his goons waiting outside. Eli charges in to destroy the Terraportal but already finds it active and is forced to duel Blakk one on one while Trixe and Kord duel everyone else outside. However the gangs blasters can only handle MegaMorph energy before a cooldown and suffer defeat due to Blakk and the Barkbane not having this handicap for some reason. Nacho damages Kord's Mechabeast causing him to go in a rage resulting in a brawl, leaving Trixe to duel the rest of the Darkbane alone. Meanwhile Eli gets shot through a wall and separated from his accelerator upgrade. He responds with a Fusion Shot that miraculously defeats a Megamorph however the Terraportal is almost finished. Trixe loses her blaster and is forced to use Kord's and literally gets knocked off her feet due to the recoil. Pronto arrives with the Shadow Clan, defeats the Darkbane and everyone charges into the portal room for a last stand. The portal is finally complete and the Darkbane army teleports through. In the battle Pronto remembers that he also brought Doc (the healer slug last seen in "What Lies Beneath") as well and Eli uses him to shut down the machine. Doc's powers actually puts the machine in reverse sucking all of the Darkbane back to the Deep Caverns and Eli and Blakk get sucked in as well. The Shadow Clan Leader attempts to shut down the portal by jamming the gears while Eli and Blakk continue fighting on the trip down. Eli escapes riding on Burpy and the Shadow Clan thank the Shane Gang for stopping the Darkbane. The episode closes at the Drop to the Surface where the gang think Eli is leaving but instead he uses Burpy to seal the entrance just before Blite appears riding on a dinosaur.

Première diffusion : 15 octobre 2013