A new term means a new intake, and for the first time the doors of Trinity are thrown open to less privileged students, including Charlotte Arc, whose professor father is found dead shortly before term begins. Charlotte and her fellow freshers soon discover a world of sex, drugs and secret societies - including the mysterious Dandelion Club. What is hidden inside Trinity's walls?

Ross displays violent tendencies, risking expulsion and setting Theo up against Professor Maltravers. Dorian plans a prank.

Charlotte tries to uncover the truth behind Ross's death. Maltravers vents his anger on Dorian, leading to a power struggle within the Dandelion Club.

Charlotte and Rosalind both try to be elected first year rep. Meanwhile, the Warden's suspicions grow, and Lord Gaudain worries Maltravers is losing his grip. Charles Dance stars.

It is Founders Day, and Trinity alumni come back to visit the college - including Hunter, the richest man in the world. Maddy has an unwelcome guest.

Jonty becomes suspicious about Ross's death - was it really suicide? Professor Maltravers offers him a deal, which he refuses - with dark consequences.