Will Grant takes a ride in Cuba to discover how people get around and whether the thaw in relations with the United States will make any difference to their lives. The country is known the world over for its classic cars, a consequence of the American trade embargo imposed after the revolution in 1959, when, as one motoring journalist quipped, 'the tail fin was still a recent innovation in automotive design'. There are a few collectibles but spare parts are almost impossible to come by and most vehicles are held together with sticky tape and glue. It is almost as if Cuba has been stuck in a time warp for half a century with around 60 thousand vintage cars now attempting to navigate the country's notoriously bad roads. Car ownership is still the dream for most people but the reality is a chaotic bus service, a bone shaking ride in a horse and cart or hitching a lift. How do people cope and will things change?

Celia Hatton goes undercover to The Fortress, the Chinese village at the centre of the world's illicit ketamine problem. She hears how China is a top maker and taker of the drug. Celia visits karaoke bars where ketamine is snorted regularly; she hears from those trying to wean themselves off their addiction; and hears from police who took part in a major raid on a village accused of producing vast quantities of illegal ketamine. A local farmer complains that his land and his crops have been destroyed by the drug gangs and Celia discovers how Chinese ketamine has led to the problem known as "Bristol bladder" back in the UK. John Murphy producing.

South Africa is in crisis as the national electricity generator, Eskom, struggles to provide an adequate power supply and rolling blackouts hit the country on a regular basis. As Neal Razzell reports, there's now concern that jobs and growth are at risk from the power cuts, and the ruling ANC - which blames the problem on inheriting an apartheid-era network designed only for the white population - stands accused of complacency and incompetence.

Michael Gallagher producing.

In one of the largest operations of its kind, thousands of migrants, mostly from sub-Saharan Africa, were pulled off cramped, unseaworthy boats in the Mediterranean in June. Gabriel Gatehouse has had rare access to the operation. He follows two young men as they try to find a new home in Europe, from the moment they board a privately-funded search and rescue ship, to their attempts to evade the Italian police.

The global trade in wildlife is worth an estimated US$20 billion a year. Peru is one of the most biodiverse nations on the planet. But its government estimates 400 species of fauna and flora are in danger of extinction - illicit trafficking is one of the biggest threats. The illegal wildlife trade supplies live birds and animals - macaws, parrots, monkeys, turtles - for both the local market and overseas collectors. It also commercialises body parts - the rare Andean bear, and the feathers of condors. So how is Peru attempting to protect its precious resources? For Crossing Continents, Linda Pressly goes on operations with the wildlife police.

Produced by John Murphy.

Natalia Antelava asks if the creeping influence of the Orthodox Church in Georgia's schools is turning them into a breeding ground for radical Christianity. Georgia's liberal politicians say only alignment with Europe and US will allow Georgia to overcome its post-Soviet past and survive as an independent nation. But in the way of Georgia's pro-Western course stands its Orthodox neighbour Russia and, increasingly, the country's own Orthodox Church. Natalia Antelava visits her old school in Tbilisi to see how the country's most conservative, anti-Western institution is influencing the next generation. Wesley Stephenson producing.

In rural India, wrestling often attracts larger crowds than cricket. And for poor, farming communities in Maharashtra, a wrestler in the family can also mean a ticket out of poverty. For Crossing Continents, Rupa Jha meets the young fighters and their families, and explores how this ancient sport is breaking down caste barriers. Linda Pressly producing.

Does Portugal have a problem with police brutality and racism? In February a group of young black men from the Lisbon suburb of Cova da Moura allege they were beaten and racially abused at a police station. Police claim the men tried to invade the station. Residents of Cova da Moura are mostly from immigrant backgrounds, and they say this is just the latest of a number of serious incidents in the past few years, and claim that the neighbourhood has become a 'police state'. James Fletcher travels to Cova da Moura to investigate whether police are too heavy handed towards black and immigrant communities, and whether those communities are bearing the brunt of Portugal's austerity driven spending cuts.

(Warning: Contains strong language).

Teatr doc was founded 12 years ago by playwrights who couldn't find a venue willing to stage their documentary-style plays that often challenge the status quo. In December the theatre was raided and forced to shut its doors but it quickly reopened in new premises and is still cocking a snook at the authorities. "Doc" as it is known to those who frequent it, has been recognised internationally as one of Russia's most prolific, innovative, and socially engaged theatre companies. For Crossing Continents Lucy Ash attends the opening night in the theatre's new home, and asks its actors, directors and its audience what the theatre says about life in Russia today.

Are excessive traffic fines and debtors' jails fuelling community tensions in suburban Missouri? Claire Bolderson reports on a network of ninety separate cities in St Louis County, most of which have their own courts and police forces. Critics say that their size makes them financially unviable and allege that some of them boost their incomes by fining their own citizens and locking them up when they can't pay.

This edition of Crossing Continents goes out and about in St Louis County to meet the people who say they are victims of a system which sees arrest warrants issued for relatively minor misdemeanours. Many of the victims are poor and black. The programme also takes us into the courts, and out onto the freeways with some of the County's police, who say they are upholding the law and promoting road safety.

The US government is not so sure. One of the towns in question is Ferguson where riots erupted after a white police officer shot a young black man dead last summer. In a recent report on the riots, the Department of Justice concluded that the Ferguson police had been stopping people for no good reason. It said they were putting revenue before public safety.

Claire Bolderson investigates how widespread the practice is and considers the impact on relations between citizens and the authorities that govern them.

Produced by Michael Gallagher.