Doing the ultra-quick search you could have done, for"mondeo 2.0 auto gears stuck", I got these, which suggest a duff solenoid on the selector. The last link includes a possible get out of jail strategy.
http://www.honestjohn.co.uk/forum/post/index.htm?t=50969 - Posts 1 and 2
http://www.talkford.com/community/topic/140596-auto-box-gear-selector-button-stuck/
http://www.talkford.com/community/topic/102011-automatic-gear-lever-stuck-in-park/ - See post #11, especially.
HTH
acp, April 2017