SELLECK BLOOD FEUD OVER DONNIE'S BETRAYAL!

Protégé Wahlberg steals show from under Tom's nose

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Donnie will star in a new Blue Bloods spinoff without his "great mentor" Tom

BLUE BLOODS alum Tom Selleck is seeing red over the ultimate betrayal — former costar and protégé Donnie Wahlberg is stealing his beloved TV show!

The 80-year-old former Magnum, P.I. star bitterly fought CBS execs to keep his hit show Blue Bloods on the air — and lost. Now sources say he hit the roof when he learned Donnie will be the star of the show's just-announced spinoff, Boston Blue.

The new series will reunite viewers with Donnie's character, NYPD officer Danny Reagan, as he moves to the Hub and joins the Boston police department, where he'll team up with detective Lena Peters, a character from a prominent law enforcement family.