The 90-minute programme averaged 3.15 million and a 14.7% share from 9pm, adding 338k (2.3%) on Channel 4 +1.
For the last 15 minutes of the 9pm hour, The Plane Crash gained a lead over BBC One's Hunted, which overall averaged 3.42m (15.1%) during its entire slot.
Meanwhile, BBC Two's The Choir surpassed ITV drama Homefront - the Gareth Malone reality show, this year set in Britain's busiest workplaces, soared to 2.58m (11.4%) in the 9pm hour.
Starring Claire Skinner, military drama Homefront actually grew to 2.44m (10.8%), but not at the rate of The Choir which it pipped last week.
Homefront did, however, add a further 255k (1.5%) on ITV1 +1 an hour later.
Heroes of the Skies was Channel 5's best-rated broadcast with just 736k (3.3%) in the 8pm junction, meaning Channel 5 rated below ITV2 for a second week.
Overall among the terrestrial channels, BBC One led primetime with 19.4%, beating ITV1's 16.3% (+1: 0.8%). Channel 4 managed third place with an impressive 10% (+1: 1%), ahead of BBC Two's 9.2%, and Channel 5's 2.7% (+1: 0.1%).
BARB ratings data supplied by Attentional