Gene and Alex's relationship is so complex; it is very sparky and they obviously care for each other in a grudging manner so it'll be interesting to see how this evolves. Ray and Chris are still by Gene's side, but when force legend DS "Supermac" Macintosh (Roger Allam) starts working with the team it looks as if Gene's equilibrium could be broken.
The arrival of "Supermac" seems like a blessing to the team because he's been hailed as a star within the force and someone not to be reckoned with. However, it's not long before Gene's gut instinct tells him something isn't quite right. Could this cop legend be up to no good?