At the Cheltenham Festival he started 7/4 favourite for the Supreme Novices' Hurdle but finished fourth behind Al Ferof, Spirit Son and Sprinter Sacre.

He was beaten a short head when attempting to concede seven pounds to Bobs Worth in the Berkshire Novices' Chase and finished second to Sprinter Sacre in the Arkle Challenge Trophy.

[5] He was then moved up in class and distance for the King George VI Chase at Kempton Park Racecourse on Boxing Day, but after making mistakes at the first two fences he tired in the closing stages and finished fifth behind Long Run.

In February, Cue Card won the Grade I Ascot Chase, beating Captain Chris by six lengths: he led for most of the race and was never in danger of defeat after the runner-up made a "terrible blunder" at the final fence.

[7] On his final appearance of the season, Cue Card finished four and a half lengths second to Sprinter Sacre in the Melling Chase at Aintree.

On 23 November, Cue Card contested an exceptionally strong renewal of the Betfair Chase at Haydock Park and started at odds of 9/1 against a field which included Bobs Worth, Long Run, Tidal Bay and Silviniaco Conti.

He took the lead at the fourth fence and was never headed, turning back the challenges of Silviniaco Conti and Dynaste before drawing away in the final stages to win by four and a half lengths.

Subsequent x-ray examinations revealed that the gelding had in fact sustained a stress fracture to his pelvis, ruling him out for the rest of the season.

On 31 October 2015, Cue Card made his seasonal reappearance in the Grade 2 Charlie Hall Chase with his trainer Colin Tizzard reporting he had solved the problems with a trapped epiglottis of which Cue Card suffered in the previous season,[12] and duly obliged by returning to winning ways first time in almost two years winning by three and three-quarter lengths from a smart performer in Dynaste.

On Boxing Day 2015 Cue Card continued his improved form of the season and displayed a career best performance to take the King George VI Chase where a strong field was assembled, representing almost all form lines of the early season in staying graded races, including the winner of the Hennessy Gold Cup.

Cue Card settled in the middle of the pack for most part of the race and only started to make ground on the front-runner Vautour —one of the leading novice chasers of the last season— in the back straight with the latter setting up a solid pace upfront.

The two were left clear by the second last fence at which the favourite Don Cossack fell and an exciting battle began after the last with Cue Card catching Vautour with every stride.

[13] His next race was after a three months break being sent straight for the Cheltenham Gold Cup in which he was bidding for the Stayers Chase Triple Crown £1 million bonus.

[14] Cue Card bounced back in the Betfred Bowl Chase at Aintree a few weeks later when going off the odds on favourite, he was an impressive winner with Don Poli in second and Djakadam in third.