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70317 The Fortrex is a 1,140 piece Nexo Knights set released in 2016. It includes Clay Moorington, Aaron Fox, Axl, Chef Eclair, 2 Scurriers, an Ash Attacker, and a hologram of Merlok 2.0. The set's build consists of a large hybrid between a castle and a tank for the knights to pilot.


The Fortrex is a castle that rolls on treads. There are many doors, and at the front is a drawbridge that a jet can be stored behind. The jet can fire a giant missile. There are some trans neon reddish orange chains and two towers, having one rapid-fire stud shooter each. There are also some trans neon reddish orange banners. The Ash Attackers get a flyer with a disc launcher, and the two Scurriers have a spear and dynamite. Also included: a book, a holographic banner of Merlok, and a brick separator. description

Roll into action with the NEXO KNIGHTS™ 2-in-1 battle castle!

When Knighton is under attack by Jestro, LEGO® NEXO KNIGHTS™ knights roll into action! Send out the Fortrex, the huge 2-in-1 rolling castle! Launch the Knight Cycle and Aero-Striker V1 to engage the Ash Attacker and Scurriers! Fold out the walls to reveal the hi-tech HQ and get your brief from Merlok 2.0, and plan your next daring mission at the round table to stop Jestro taking the Book of Evil! Includes 5 scannable shields for NEXO Powers: Ground Pound, Super Human Speed, Hawk Holler, Chicken Power and Charging Attack.

  • Includes 7 minifigures: Clay Moorington, Aaron Fox, Axl, Chef Eclair, Ash Attacker and 2 Scurriers.
  • The Fortrex features 2 rapid-fire stud shooters on the front; a disc shooter concealed under the drawbridge; 2 stud shooters on the drawbridge and 2 movable double laser cannon stud shooters.
  • Weapons include Clay Moorington’s grey sword and Techalibur, Aaron Fox’s Blazer Bow stud shooter, Axl’s Big Power Axe, Scurriers’ spear and dynamite, and Ash Attacker’s Magma Blade.
  • Accessory elements include the Book of Evil, Merlok 2.0 character, Techalibur sword, shooting target, robot trainer with movable arms, ladders, toolkit, frying pan, cup, chicken leg, 3 helmets and Chef Eclair’s chef hat!
  • Aaron Fox’s Aero-Striker V1 flyer features a missile shooter and movable wings.
  • Ash Attacker’s Firesquito features a Globlin disc shooter.
  • Lower the drawbridge to launch Clay Moorington’s Knight Cycle and pop up Aaron Fox’s Aero-Striker V1.
  • Detach the Aero-Striker V1 from the Fortrex.
  • Capture the enemy and secure them in the Fortrex’s prison.
  • Castle walls easily open out to reveal the feature-packed LEGO® NEXO KNIGHTS™ headquarters, featuring a round table, training area, prison, kitchen and more.
  • Place Merlok 2.0 in the center of the round table, and push him down to release 4 chairs, featuring shield holders.
  • Help Chef Eclair prepare a tasty snack for Axl and the hungry knights in the kitchen.
  • Practice swordsmanship skills and improve your aim in the weapon training area.
  • Repair Aaron Fox’s Aero-Striker V1 with the toolset and tools.
  • The Fortrex measures over 9” (25cm) high, 8” (21cm) wide and 9” (24cm) deep, and over 9” (25cm) high, 14” (37cm) wide and 9” (23cm) deep with walls folded out.
  • Clay’s Knight Cycle measures over 1” (3cm) high, 3” (9cm) long and 2” (7cm) wide.
  • Aaron’s Aaron Fox’s Aero-Striker V1 measures over 2” (5cm) high, 3” (10cm) long and 5” (13cm) wide.
  • Ash Attacker’s Firesquito measures over 1” (4cm) high, 3” (10cm) long and1” (3cm) wide.
  • Combine with the attachable 70324 Merlok Library 2.0 for extra reinforcements!
  • Download the free LEGO® NEXO KNIGHTS™: MERLOK 2.0 app to your smartphone or tablet. Ask your parents’ permission first.
  • Scan shields for each of the 5 NEXO Powers (Ground Pound, Super Human Speed, Hawk Holler, Chicken Power and Charging Attack) and power up in the LEGO® NEXO KNIGHTS™ game!
  • Watch all your favorite NEXO KNIGHTS™ episodes on Cartoon Network.

Minifigures included


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2016: 70310 Knighton Battle Blaster | 70311 Chaos Catapult | 70312 Lance's Mecha Horse | 70313 Moltor's Lava Smasher | 70314 Beast Master's Chaos Chariot | 70315 Clay's Rumble Blade | 70316 Jestro's Evil Mobile | 70317 The Fortrex | 70318 The Glob Lobber | 70319 Macy's Thunder Mace | 70320 Aaron Fox's Aero-Striker V2 | 70321 General Magmar's Siege Machine of Doom | 70322 Axl's Tower Carrier | 70323 Jestro's Volcano Lair | 70324 Merlok's Library 2.0 | 70325 Infernox Captures The Queen | 70326 The Black Knight Mech | 70327 The King's Mech | 70330 Ultimate Clay | 70331 Ultimate Macy | 70332 Ultimate Aaron | 70333 Ultimate Robin | 70334 Ultimate Beast Master | 70335 Ultimate Lavaria | 70336 Ultimate Axl | 70337 Ultimate Lance | 70338 Ultimate General Magmar | 70339 Ultimate Flama | 853515 | 853516
2017: 70347 King's Guard Artillery | 70348 Lance's Twin Jouster | 70349 Ruina's Lock And Roller | 70350 The Three Brothers | 70351 Clay's Falcon Fighter Blaster | 70352 Jestro's Headquarters | 70353 The Heligoyle | 70354 Axl's Rumble Maker | 70355 Aaron's Rock Climber | 70356 The Stone Colossus of Ultimate Destruction | 70357 Knighton Castle | 70358 Aaron's Stone Destroyer | 70359 Lance vs. Lightning | 70361 Macy's Bot Drop Dragon | 70362 Battle Suit Clay | 70363 Battle Suit Macy | 70364 Battle Suit Aaron | 70365 Battle Suit Axl | 70366 Battle Suit Lance | 70372 Combo Nexo Powers Wave 1 | 70373 Combo Nexo Powers Wave 2 | 30376 Knighton Rider | 30377 Motor Horse | 30378 Shrunken Headquarters | 853676 | 853677 Battle Pack | 5004911 | 5004914
2018: 72001 Lance's Hover Jouster | 72002 Twinfector | 72003 Berserker Bomber | 72004 Tech Wizard Showdown | 72005 Aaron's X-bow | 72006 Axl's Rolling Arsenal