Documentary exploring the likelihood and potential global effects of the eruption of Katla, a huge volcano lurking under the Icelandic ice. Katla is five times the size of its neighbour Eyjafjallajokull, which recently caused so much travel disruption when it blew clouds of volcanic ash into the atmosphere. Historically, every Eyjafjallajokull eruption has been followed by a flare-up at Katla. If such an eruption were to happen now, it is predicted that European airspace would be closed down for 18 months.

Documentary exploring the likelihood and potential global effects of the eruption of Katla, a huge volcano lurking under the Icelandic ice. Katla is five times the size of its neighbour Eyjafjallajokull, which recently caused so much travel disruption when it blew clouds of volcanic ash into the atmosphere. Historically, every Eyjafjallajokull eruption has been followed by a flare-up at Katla. If such an eruption were to happen now, it is predicted that European airspace would be closed down for 18 months.

Emma is an attractive girl in her 20s who has been blind for 20 years. A new type of eye operation partially restores her sight, but she is having problems: sometimes she doesn't "remember" what she's seen until later. One night she is awakened by a commotion upstairs. Peering out of her door, she sees a shadowy figure descending the stairs. Convinced that her neighbour has been murdered she approaches the police, only to find that she is unsure if it was just her new eyes playing tricks on her.