The quartet will be undergoing the Total Warrior Challenge, pushing themselves to the limit.
They will be experiencing obstacles which include mud, fire, ice cold water, hill running and even the odd electric shock on June 25.
Melissa McTaggart from Louth decided to do the challenge to help raise funds for the Louth and District Parkinson’s Group and The Lewy Body Society in honour of her mum Janice.
She told the Leader: “My lovely mum Janice has had Parkinson’s Disease for the past nine(ish) years and it has completely changed the way she and my dad planned on spending their long awaited and deserved retirement.
“It’s been a tough road for her, but we are trying to do all we can to maintain the best bits of her as a wonderful mother, wife, nana, sister and friend. She still has her sparkle and an infectious zest for life. But it’s starting to fade.
“She developed Lewy Body Dementia five years ago - a part of Parkinson’s Disease we didn’t really know about.”
She added: “My dad is the real hero, looking after my mum day-to-day - he is an amazing man. So now it’s my turn to do something and raise money and awareness.
“So I got my childhood friend James and his partner Claire from Harrogate involved and, of course, my husband and we’re hoping to raise £1,000 between us.”
To sponsor the cause, visit: www.virginmoneygiving.com/jansjitters.