The political thriller, starring William Hurt, Jonny Lee Miller and Chiwetel Ejiofor, averaged a lowly 820k (3.9%) between 9pm and 11.05pm, with only 64k (0.5%) tuning in for the repeat on Channel 4+1.
Earlier, at 7.30pm, Bear Grylls: Mission Everest managed 760k for the channel.
The 8.30pm screening of Panorama took 2.23m (8.7%) for BBC One. The audience then rose to 5.59m (22.9%) during the 9pm hour for the latest episode of Ashes To Ashes.
BBC Two's World Snooker coverage drew 3.02m (12%) at 8pm, then 1.73m (7.1%) tuned in at 9pm for Coast.
Over on ITV1, Airline had 3.83m (15.4%) between 8pm and 8.30pm, and 4.65m (21.8%) watched Compulsion, which starred Ray Winstone and Parminder Nagra, at 9pm.
Five's The Gadget Show interested 1.1m (4.4%) during the 8pm hour. 771k stayed with the channel for sci fi thriller Hollow Man, which aired between 9pm and 11.10pm.
Overall, ITV1 dominated primetime with an average share of 26.9% to BBC One's 19.9%. BBC Two was third with 9.3%, followed by Channel 4 with 3.5% (+1: 0.4%) and Five's 3.2%.
Elsewhere, the latest episode of 24 grabbed 478k (2.1%) for Sky1 at 9pm. It was beaten by Sky3 documentary Night Cops, which took 512k (2.3%).
Ratings data supplied by Attentional