After its acclaimed debut on S4C in 2017, it was surely only a matter of time before Bang returned to our screens. Over two years have passed since the first series, with writer Roger Williams wasting no time in getting down to business. A visceral opening scene throws us straight in at the deep end, posing plenty of intrigue. What follows is a well-plotted second season that melds the development of returning characters’ stories with those of brand-new faces.

There is no sign of second series syndrome, with Williams developing a strong central crime narrative that works perfectly well as a stand-alone. This means that there is no overreliance on the likes of Sam (Jacob Ifan) and Gina (Catrin Stewart), the brother and sister who were central to the show’s original run. Instead, the continuation of their storyline is just one of a number of other narrative strands – each fully rounded and complete – that tie together nicely. It is the tightly-crafted way that Williams weaves these strands and slowly draws them into a collective whole that makes Bang such a satisfying watch.

The gun remains a potent symbol in series two, though its appearance is much more sporadic. It has shifted from being the singular obsession of one to being the shared object of many. Its presence is felt, but always underneath the surface in this latest six-episode run. The ramifications of its use, however, are potently displayed in the character of Sam. Still trying to come to terms with the death of his father by such a weapon in series one, we find him grappling with PTSD. Ifan does an excellent job of conveying Sam’s mental state; in fact, it is one of the most genuine onscreen portrayals I have ever seen. Most make clear what they are trying to do. Yet here, through a combination of fine acting, clever editing, choice camera angles, and pervasive music, the producers of Bang manage to capture Sam’s struggles so powerfully that I couldn’t help but be emotionally moved.

The domestic abuse by DI Morgan Riley (Dyfan Dwyfor) on wife Caryn (Hedydd Dylan) is no less affecting. Williams captures the subtle manipulation and invasive cruelty of the husband really well, causing me to turn away from the screen several times such was my discomfort in the face of his underhand brutality. In fact, this subplot became more absorbing than the central storyline, involving a serial killer enacting revenge for the rape of Marissa Clarke (Sophie Melville) ten years earlier. The bloodbath that ensues across the course of six episodes is fairly graphic. Yet it was the unseen mental and emotional scars inflicted on the show’s characters that had me reaching for the remote in distress.

Writer Roger Williams has not returned to Port Talbot in a hurry. This second series of Bang feels as much a labour of love as its first. It is another compelling story full of well-defined characters dealing with pressing issues. Returning fans will not be disappointed. And for those who haven’t yet seen it, I would recommend adding it to your isolation watch-list.

You can watch the full series on Clic here.