[SOLVED]How do I detect this line of code after its done?

I'm not sure what you mean by another piece of code so a few examples:

if true then
    if game.Players.NumPlayers < 1 then
        for i = TIME,1,-1 do
            status.Value = 'Intermission'..i
            wait(1)
        end
        wait(1)
        SpawnPlayers()--this would call on another function
    end
end

if true then
    if game.Players.NumPlayers < 1 then
        for i = TIME,1,-1 do
            status.Value = 'Intermission'..i
            wait(1)
        end
        wait(1)
        workspace.GameScript.Disabled = false--activating another script
    end
end

if true then
    if game.Players.NumPlayers < 1 then
        for i = TIME,1,-1 do
            status.Value = 'Intermission'..i
            wait(1)
        end
        wait(1)
        for _,v in pairs(game.Players:GetPlayers()) do--just going right onto the next thing
            v.Character:MoveTo(Vector3.new(0,0,0))
        end
    end
end