Viewers were in awe as Martin Fowler ( James Bye ) risked his life to save his ex-wife Stacey Slater (Lacey Turner) from the crumbling building, they were dealt a blow just moments after Martin cleared a path for them to escape.
Over the past few days, fans have seen the 'who dunnit' story involving Cindy Beale (Michelle Collins) finally come to an end with Kathy Beale (Gillian Taylforth) revealing she was Cindy's mystery attacker.
EastEnders star Lacey Turner's husband was 'bursting with pride' as he praised her performance on last night's episode.
Paramedics told her he would die due to suffering from crushed syndrome, meaning that his body would go into kidney failure and result in cardiac arrest.
Stacey wouldn't leave until they aired out their feelings but, as she held the door closed, a metal beam fell and crushed Martin's legs.