<p><br/>BBC<br/>Visible from space, Africa's Great Rift Valley runs three thousand miles from the Red Sea to the mouth of the Zambezi. It's a diverse terrain of erupting volcanoes, forest-clad mountains…

The everyday lives, professional and personal, of the doctors, nurses and patients who find themselves, for various reasons, in the wards of the frenetic cardiac unit of Holby City General Hospital.