Through globalization, many countries have been opened and barriers removed to ensure easy trade, travel and cultural diversity. However, this openness has given opportunities to criminals looking to exploit the system and ultimately threaten our global safety. As Europe has become a "safe house" for criminals eluding law enforcers, a special kind of law enforcement team is needed to handle specific ongoing crimes on a global level. "Crossing Lines" is the story of one such team, made up of five international cops, headed by Captain Daniel. The team - comprised of individuals who have little in common - must learn to live and work under the most dangerous and potentially deadly conditions. Housed in an unused storage section underneath the ICC, this mismatched team faces bureaucratic, jurisdictional and cultural obstacles while traversing continents in pursuit of justice.

Ethan Hunt and his team are racing against time to track down a dangerous terrorist named Hendricks, who has gained access to Russian nuclear launch codes and is planning a strike on the United States. An attempt to stop him ends in an explosion causing severe destruction to the Kremlin and the IMF to be implicated in the bombing, forcing the President to disavow them. No longer being aided by the government, Ethan and his team chase Hendricks around the globe, although they might still be too late to stop a disaster.