Money Heist season 3: What really happened to Nairobi in La Casa de Papel?

MONEY HEIST season 3 see the team reunite for a final heist after one of their own is captured by the authorities. The third series known as La Casa de Papel in Spanish, follows them as they come together to steal gold from the Bank of Spain. But what happens in the dramatic finale episode to one of the most popular characters, Nairobi?