While some sort of cathartic revenge awaits the siblings, the second series starts clunking along, with plenty of implausibilities. Looks like Danny could foresee the future and left a registered statement to his criminal boss Lowry. How unbelievable this is, it depends on your degree of suspended disbelief, but think about the fact that Danny just killed the man Lowry sent to get rid of him, so Danny's plan is to leave Lowry a message to blame his own brother John...🙄 How does this make any sense whatsoever?
Not only that, but apparently the police have time to spare, even if Danny's demise would have been a closed case in a second since he was a marked man. Instead, Marco is suspicious (why?) and starts digging. All this, while the team is engaged in a major drug/people smuggling operation. Again, how believable is that?
Finally, Kevin is the predictable weakest link, while mama Sally suddenly doesn't like her kids anymore, because Danny's gone. Sally is probably the most annoying character of the bunch with her motherly blindness and stubborn stupidity. However, the fact that from one day to the other she turns on John is not believable.