The team is regularly thrust into very challenging situations, often involving armed criminals and hostages, and the stakes are literally life-or-death. The show takes pains to show the aftermath of a shooting, when the characters are very obviously distraught after killing a suspect -- even when the act is justified.
Guns, knives, tear gas, and other weapons are common players in the exchanges with criminals. Some characters die in the crossfire, and the scenes can be intense and bloody. Even when they're not shooting, the team spends a lot of time dressed in full military-style outfits, looking ready for any kind of action.
No sex or nudity, but there are some romantic advances between the lone female officer and one of her comrades.
Given the show's intense subject matter, the members of the team are surprisingly clean-mouthed, but words like "damn," "ass," and "hell" do pop up occasionally.
Drinking, Drugs & Smoking
Some social drinking, but it's not integral to the content.