Former Bulls loanee Chris Bush has returned to Edgar Street on a season long deal.
The former Wimbledon man, 21, played six times for the Bulls on loan from Gateshead at the end of last season, and also had a spell at Lincoln.
Boss Martin Foyle told the official site that Bush needed to get fully fit after a stop-start season, adding: "I like Bushy, he's a good person, he's got a good attitude. He's willing to work hard and willing to learn."
"He's got a tremendous left foot, he's got a good long throw, he's a big solid lad, but the most pleasing thing is his quality left foot."