This evening's episode saw Lubna Farhan become the fourth candidate to be fired from the BBC One business show.
In this week's episode, Lord Sugar summoned the candidates to London's Transport Museum.
"I want you to design a new electric bike," Lord Sugar instructed. "You need to create a prototype, plan and host your own launch event and pitch your electric bikes to retailers.
"You'll also need to select a bike accessory to sell at the event. The team that secures orders worth the most amount of money will win. And on the losing team at least one of you will be fired."
Iasha Masood led Team Empower with Ryan-Mark Parsons, Dean Ahmad, Lewis Ellis, Carina Lepore, Jemelin Artigas and Pamela Laird.
Team Unison was led by Thomas Skinner, with Riyonn Farsad, Lottie Lion, Lubna Farhan, Marianne Rawlins, Scarlett Allen-Horton and Riyonn Farsad.
Half of each team went to Nottingham to develop their new bikes while the other half of each team stayed in central London to choose accessories and create marketing materials.
Team Unison produced a bake called E-Fit and sold lycra clothing accessories while Team Empower created a bike named Aphrodite and sold a smart bicycle helmet.
After pushing hard for sales to retailers, the candidates returned to the boardroom where the all important figures were revealed.
The Apprentice 2019 results
Team Unison made orders from their bike and accessories totalling of £437,700.
Team Empower made total orders of an impressive £1,265,210, easily winning the task.
For their treat, Team Empower went go karting while Team Unison stayed to face Lord Sugar in the final boardroom.
Project manager Thomas brought Lubna and Marianne back for the final showdown.
Delivering his verdict, Lord Sugar said: "Lubna, we haven't seen you do much in the first four weeks and so it is with regret that you're fired."
Making her exit, Lubna said: "I tried being myself and I hoped that would be enough. I should have maybe tried showing Lord Sugar what I'm capable of but unfortunately I was unable to do that."
The Apprentice 2019 continues next Wednesday night at 9PM on BBC One.