Updated

For a second straight week, the Detroit Lions made an epic rally, this time finishing a happy homecoming for quarterback Matthew Stafford.

It also resulted in the largest collapse in the history of the Cowboys.

Stafford threw a two-yard touchdown pass to Calvin Johnson with 1:39 remaining in the fourth quarter, rallying Detroit from a 24-point deficit in the third quarter for a 34-30 win over Dallas.

The Lions picked off Tony Romo three times in the second half, two resulting in returns for touchdowns by Bobby Carpenter and Chris Houston. The last pick, by Stephen Tulloch, led to the go-ahead score, rallying the Lions from a 27-3 hole.

The Lions (4-0), winners of eight in row going back to last season, tied their largest come-from-behind victory. It came in similar fashion from last week, when Detroit scored all its points after halftime, rallying from a 20-0 deficit for a 26-23 overtime win at Minnesota.

The latest win put the Lions 4-0 for the first time since 1980.

Stafford, the first-overall pick in the 2009 draft who was a high school star at Highland Park in Dallas, completed 21-of-43 passes for 240 yards with two scores to Johnson. He was also intercepted once.

Romo ended 34-of-47 for 331 yards and three scores, but the Cowboys (2-2) gave up 31 points in the second half.