The last stage before the Grand Finals, and the pressure is on. With this level of carnage not all robots may leave the arena as they fight for the title, and their lives.
Heat winners gather for the beginning of The Fourth Wars semi-finals. Pinball Warrior and Sumo Bash make way for the brutal knockout competition.
An impressive weapon manages to fight off two robots simultaneously, ripping through armor and insides. As one of the finalists is still reeling from the previous rounds, will they manage to come back and take the finals?
Not even the arena floor is safe in this week's eliminators, as the competitors go all out to best the opposition. One robot manages to take control in the heat finals.
Renowned robot Firestorm 2 takes on Pinball Warrior this week and the heats are nearing their end. The house robots show no mercy against a flipped robot.
The heats resume this week, and one competitor has its own entrance ceremony. Gemini returns to the arena to prove themselves in Pinball Warrior.
The UK and USA battle it out to prove which country has the better robots. Each country has four robots representing and fighting for them. A straight knockout competition will determine a victor.
Renowned robot Firestorm 2 takes on Pinball Warrior this week and the heats are nearing their end. The house robots show no mercy against a flipped robot.
The heats resume this week, and one competitor has its own entrance ceremony. Gemini returns to the arena to prove themselves in Pinball Warrior.
The UK and USA battle it out to prove which country has the better robots. Each country has four robots representing and fighting for them. A straight knockout competition will determine a victor.
The South's turn for the annihilator. Same rules, different robots.
Northerners compete in an annihilator. In the first round, all six robots would fight each other until one of them was eliminated. The process continued until only two robots remained, with the subsequent winner becoming the annihilator champion.
Four teams take part in the tag team terror tournament. Two teams comprised of two robots enter the arena at once. Only one robot is allowed to battle, only being able to switch with their team-mate by entering their team's coloured zone.
Celebrities take to the arena, teaming up with veterans from the series and their robots. The celebrities must control the robots for at least 60 seconds before the professionals can take over.
The eliminator begins slowly, but as the battle heats up the robots must stay cool, or they might end up losing their head. The house robots see one of their busiest nights in the arena as they try to keep up.
A single strike spells trouble for a robot in the eliminators. A fleeting alliance forms as competitor and house robot team up to make an offering to the pit. This week's Pinball Warrior has high-hopes for a standout performance.
Veterans and Newcomers once again face the eliminators and Dead Metal tries to make a friend. A house robot gets flipped, causing the others to go on a rampage. A uniquely designed robot takes on Pinball Warrior and two more competitors stare down Shunt in Sumo Bash.
A competitor faces issues before the battle even begins in this week's eliminators and the house robots stand by, ready to strike the final blow. The clock proves to be the enemy in this week's Pinball Warrior, and the competitors prepare to stand their ground in Sumo Bash.
Six competitors, including World Champion Razer battle it out for a shot at the Fourth Wars title. Irreparable damage could mean the permanent end of one of the veteran competitors in the semi-finals.
The wars begin yet again, competitors can only qualify by destroying or outsmarting their opponents, and doing their best to stay out of the house robots way. Sumo and Pinball Warrior will test the robots grit and accuracy.