The Three Lions were made to sweat but got the three points with a header in the first minute of additional time
Harry Kane was England's saviour as he headed home a stoppage time winner to secure a dramatic victory over Tunisia.
Captain Kane had opened the scoring in the 11th minute and then popped up in the 92nd minute with a winner on a night when it looked like England were going to be frustrated by their opponents.
The victory sends Gareth Southgate's side into Sunday's match with Panama knowing a victory will likely be enough to secure their progress to the last-16 of the tournament.
It had all looked so good for England in the first-half of their Group G opener when Kane gifted Southgate's side an 11th minute lead, but a series of wasted opportunities looked like they could prove costly when Kyle Walker conceded a penalty and Ferjani Sassi stepped up and converted from 12 yards.