If the order says that your brother is not allowed to talk to or see the kids (in addition to his wife), he should speak to an attorney immediately. It is possible that the order he receives contains another date, possibly within the next 10 days, when he must return to court and tell the judge his side of the story. He would want an attorney to help him with that, as the stakes are high.
If there is no return court date, your brother will need to begin a custody action in court. If he can not speak to his wife, then he can not negotiate with her, so the only option remaining is going to court. He should speak with a lawyer about how to begin a custody lawsuit and to determine how quickly he can get before a judge to start visitation with the boys.
Erik L. Mazzone
The Rosen Law Firm
4101 Lake Boone Trail, Suite 200
Raleigh, North Carolina 27607
The response posted above is based upon the limited factual information made available and is not intended as a full and complete response to the question. The only reliable manner to obtain complete and adequate legal advice is to consult with an attorney, fully explain your situation, and allow the attorney sufficient opportunity to research the applicable law and facts required to render an accurate opinion. The basic information provided above is intended as a public service but a full discussion with an attorney should be undertaken before taking any action.