Season 3

Despite Argentina's history of political and economic upheaval, the nation's capital Buenos Aires has remained relatively stable. But with millions moving to the city for a better life, the cracks in infrastructure and gaping income inequality are now overwhelming. In order to stem the tide, passionate locals have adopted a grassroots approach to tackling challenges big and small in order to ensure quality of life for all.

The capital of Taiwan is a young city undergoing rapid change and development within a fragile governmental framework. While the island boasts one of the highest economic growth rates in Asia, it maintains a tenuous relationship with China that makes its future uncertain. Fortunately, the citizens of Taipei are loud enough for the entire country, and they will do what it takes to make their voices heard to move forward into a more transparent, greener future.

Spain's second-largest city is one of the most popular tourist destinations in Europe, with around 30 million tourists visiting Barcelona each year. Given the city's small population of roughly 1.5 million citizens, however, the impact of tourism is significant and not all positive. Barcelona's rise in popularity has compelled locals to find solutions to reclaim their city and make it more liveable.

Once considered the Paris of the Middle East, the ancient city of Beirut has survived a brutal civil war, ongoing conflicts with Israel, political assassinations, and endless bombings. Amidst crumbling buildings, a major garbage disposal crisis, and frequent blackouts, Beirutis take everything in stride, because they understand better than most that nothing gets done unless you do it yourself.

When Hurricane Katrina ravaged the United States' Gulf Region in 2005, killing over 1800 people, displacing over a million, and causing over 151 billion US dollars in damages, New Orleans was caught in the eye of the storm. The city itself lost nearly half of its population. Fifteen years later, the recovery is ongoing and has taken the form of mass tourism that is pushing out locals. But the city's resilience lies in its strong, multifaceted culture, and in its history of overcoming adversity.

Toronto has always cast a long shadow on the city of Hamilton, Ontario, for a number of reasons: it's bigger, it's more economically successful, and people want to live there. But times are changing.