defendant discontinued but what about defendants counterclaim?

[sapnker]

Scenario.
Claimant issues claim against 2nd defendant for money over central heating installation.
2nd Defendant counterclaims against claimant.
Claimant some time later discontinues claim against 2nd defendant.
Does the 2nd defendants counterclaim still stand or did it die because the claim against the 2nd defendant was discontinued?

Cheers guys.

Paul.