A 95th-minute equaliser from Jonathan Douglas earned Brentford a point at League One leaders Tranmere Rovers.
Jean-Louis Akpa Akpro's individual effort shortly after half time looked to have been enough to maintain Tranmere's 100% start at Prenton Park.
The Frenchman had headed wide from a James Wallace cross before he fired past Simon Moore from a tight angle.
But Douglas struck for the Bees in stoppage time, volleying in after Clayton Donaldson's long throw.
VIEW FROM THE DRESSING ROOM
Brentford manager Uwe Rosler told BBC London 94.9:
"It's very difficult to say what my emotions are but we are very happy about the point.
"We were 1-0 down with 30 seconds to go and we scored.
"I think we definitely have to be very happy about that point - but tomorrow morning I think I will be disappointed."
Tranmere 01 fon Williams 02 Holmes 04 Taylor 14 Bakayogo 21 Gibson 06 Palmer 07 Thompson (McGurk - 85' ) 08 Wallace (Harrison - 88' ) 10 Robinson Booked 09 Cassidy 26 Akpa Akpro Substitutes 33 Mooney 19 Kay 23 Golobart 12 Harrison 11 McGurk 16 Stockton 22 Bell-Baggie Brentford 21 Moore 05 Craig Booked 06 Dean 14 Logan Booked (Forshaw - 73' ) 24 Bidwell 02 O'Connor 08 Douglas Booked 12 Adeyemi 18 Fredericks (Donaldson - 56' ) 19 Forrester (Saunders - 56' ) 23 Hayes Substitutes 01 Lee 32 Legge 04 Forshaw 07 Saunders 20 Diagouraga 09 Donaldson 10 El Alagui