Forgot alternate password on s5 and can't get in

[AC Question]

How do I get into my S5. I cannot remember my alternate password. I tried to use device manager to bypass and reset the lock but it said that since it was already locked it was no able to bypass that lock.
My kids got their hands on my phone and tried to figure out my main password and after numerous attempts it defaulted to the alternate password.

 

[Almeuit]

After multiple entries (incorrect ones) it should ask for your Google account on the phone.