BBC reporters found a big and dangerous gang in France and the UK. This gang helps people cross the sea from France to the UK in small boats. The gang takes a lot of money from people who want to go to the UK, and they use violence to control their workers and the people who want to cross.

The reporters went to the gang’s secret camp in a forest in France. They saw how the gang works and how they try to hide from the police. The gang changes its name and phone numbers many times so the police cannot find them. Some people died when they tried to cross the sea because the boats are not safe.

The BBC also found people in the UK who help the gang collect money. The reporters gave money to a man in Birmingham to show how the gang gets paid. The police in France and the UK are trying to stop the gang, but it is very difficult because the gang is very careful and always changes its plans.