The episode begins with Alex giving Rosa, Sofia, Kim, and Chloé a detailed plan on how to execute the robbery. She warns them about the highly secured anti-theft device installed around the treasure chest, which alerts the cops within 30 seconds of being triggered. Any mistake here could cost them their lives.
Alex reveals that they have only 3 minutes to execute the robbery and that Kim will need to perfect her driving skills to drive them away with the loot. Meanwhile, Laurent asks Ezéchiel where he stands in his quest to find the thieves. Ezéchiel gets upset with Laurent for ordering him around on behalf of Mr. Marionnaud.
Kim starts having a panic attack and becomes worried about not being able to drive well on the day of the robbery. She talks to her doctor and asks for some antidepressants, but the doctor refuses to give her more pills.
On the other hand, Rosa is on a date with Victor. He gives Rosa the key to his house and tries to take the next step in their relationship. Rosa hesitates and comes clean about her husband being in prison. She reveals that she is in debt and tells Victor about her two kids. Victor tells Rosa that his feelings for her are unchanged and asks her to still take the key. Rosa leaves his house.
That night, Rosa talks to Kim and the others about Victor. The women wonder if Rosa has fallen in love with Victor when she talks about postponing the robbery. Meanwhile, Ezéchiel is trying to find the person who modified a BMW M3. Louise asks Alex to stay over with her. Alex texts Rosa that she will be at the bank the following morning. She ends up getting high on drugs and wakes up in a hospital the following morning.
Rosa, Sofia, Kim, and Chloé were all eagerly awaiting Alex's arrival. However, their anticipation turned into discord as Sofia and Rosa got into a heated argument, which led them to hastily leave for Castel Bank once Alex arrived.
Upon entering the bank, Rosa introduced herself as Victor's girlfriend and engaged in small talk with him, distracting him just as Sofia, Alex, and Chloé arrived in disguise.
Alex took the unsuspecting receptionist to the treasure chest, while Sofia scanned the crowd and spotted her boss. She threatened him, but one of the guards tried to take down Chloé. The bank erupted into chaos when Chloé fired her gun to intimidate the guards.
The receptionist informed Alex that she didn't know the password to the treasure chest. Alex tried to obtain the code from Victor, who stubbornly refused to give it up. However, Rosa ingeniously posed as being taken hostage by Alex to convince Victor to hand over the code. While they were opening the chest, Victor sent an alarm signal to the cops.
Alex scurried inside the chest and packed the cash in bags with Sofia's help. Laurent and Malik brought a team of cops to the bank, while Ezéchiel and his goons left to intercept them. In the midst of the heist, Sofia received a call from her son's school and panicked, starting to limp her way out of the bank.
As they fled, Alex took Rosa with them. The four women left the bank and searched for their car. Kim suddenly appeared and sped them away before the cops could catch up. Malik and Laurent chased after them in a BMW, but Kim raced through the streets at top speed.
The cops were left behind, but Ezéchiel and his men stopped the BMW from the front. The women exited the car and pretended to take Rosa hostage, claiming that they had a sniper ready to shoot and kill Ezéchiel. Faced with this threat, Ezéchiel ordered his goons to lower their weapons and back off.
Later that day, Rosa returned to the bank and feigned fear to lure Victor away with her. Sofia arrived at the hospital to learn that her son, Younes, had been in an accident. Caroline was also at the hospital and threatened to take her children away due to her perceived negligence in raising them.
Meanwhile, Chloé returned home and hid the guns in her garage. The episode concluded with Simon waiting at their house when Rosa showed up with Victor.
