Worlds collide and nothing is what it seems in the thrilling new installment of Mi-5. Tom has been branded a traitor and has disappeared, while Harry is in the hospital, seriously wounded. There's dissension in the ranks as Danny and Zoe are determined to clear Tom's name and an enemy they never thought possible has put the entire service at risk. An enigmatic agent, Adam Carter has been recruited from Mi-6 to help pick up the broken pieces but with his track record nobody will be safe.
