Patrick Quinlan

The doctors try to cope with heartache and injuries caused by the plane crash; everyone at Seattle Grace struggles to return to normalcy amid the chaos.

Katie threatens to take legal action against Violet for breach of confidentiality, and although Violet feels that she hasn't done anything wrong, she soon realises she'll have to defend her actions to more than just Katie.

Treating a drug addict patient results in House examining his life, his future and his own personal demons.

Callen and the team confront their vengeful adversary, the Chameleon, when an undercover case ignites a deadly mind game orchestrated by the criminal mastermind.

After Ducky is attacked by a man claiming to have information about his half-brother, who died decades ago, the team searches for the perpetrator as Ducky recalls the final emotional days he had with his sibling.

Coulson and his team choose an unlikely refuge to hide from Talbot and work on uncovering S.H.I.E.L.D.'s secrets.