Johnson's in four-midable form at Hexham.
The County Durham trainer, who preferred to stay at home, had the winner of all four races he had runners in with his other two representatives finishing third and fifth.
Pemberton (5-1) set the ball rolling as he outfought Motarid to make a successful jumping debut in the At The Races Sky 415 Juvenile Maiden Hurdle.
With stable jockey Denis O'Regan plumping for Johnson's other runner and newcomer, Abbaleen (8-1), it was left to James O'Farrell to do the honours.
And the 3lb claimer allowed the hard-puller to settle in behind before making progress in the final half-mile to win by a length.
O'Regan, who went on to win on the other three for a 179-1 treble, said: "I picked the wrong one, but there wasn't much to tell between them at home."
O'Regan, who was returning after serving a 10-day suspension, was soon on the scoresheet with Letterpress (9-1) in the EBF toteexacta "National Hunt" Novices Hurdle (Qualifier).
However, he had to work hard to wear down Pimbo Lane for a three and- a-half length verdict. The oddson Joe's A Boy was well behind when pulled up before the last.
"He just didn't stay when he ran last year, He was a bit weak," O'Regan went on. "He should improve for the experience."
O'Regan doubled up thanks to Companero (7-2) in the totesuper7 Handicap Hurdle.
The eight-year-old defied top weight in style as he stayed on stoutly to hold Twelve Paces by eight lengths.
O'Regan said: "He came back on the bridle when I got him going coming down the hill and he came home really well."